T$ 545 
. B65 
Copy 1 







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Class_ 



Copyright N°. 


COPYRIGHT DEPOSIT. 










Booklet 


of 

Tables Exhibiting 

the 

Observatory and Pocket Results 

of 

Fine Watches 

With 

Blank Tabulated Forms 

for 

Systematic Time Service Records 

of 

Any Timepieces 

/ 

Designed 

Arranged, Compiled 
and 

Copyrighted 

by 

F. M. Bookwalter 
Springfield, Ohio 
1911 

j , 

* j 

>• 

Printed by 

The Young & Bennett Co. 

Springfield, Ohio 











1 



















PREFACE 

It is known quite generally that time pieces of every description are 
incapable of keeping absolutely correct time. The Observatory regula¬ 
tor hermetically encased, with its pendulum swinging in a uniform at¬ 
mospheric pressure and temperature in the absence of earth tremors, 
attains the highest practical results. Next follows the finely constructed 
and adjusted Marine Chronometers; much more numerous than regula¬ 
tors. Following the two mentioned are the finely finished and adjusted 
Observatory tested precision watches having not less than nineteen jew¬ 
els. After these are the innumerable cheaper watches of all grades of 
more or less merit in time keeping. It is to the grade and quality of 
adjusted and precision watches, that the completed tables in this Treat¬ 
ise is devoted; although the blank records are adapted to any grade and 
quality. The completed tables are interesting from the fact that they ex¬ 
hibit both the Observatory and the pocket performance of three foreign 
pieces, possessing the highest excellence attainable, in the highly devel¬ 
oped and modernized methods of intelligently combined hand and ma¬ 
chine production. There are also a number of the best American pieces 
which exhibit various pocket results, and the degree of excellence they 
have also reached. The tables demonstrate unmistakably for all watches, 
their instability of regulation, their inability to maintain uniform action, 
and the impossibility of absolutely correct time. 

Several years ago the writer adopted for his private use, a simple and 
inexpensive method of systematizing time records of a good watch which 
he possessed. The object was to determine more accurately and defi¬ 
nitely the performance of such a piece while in actual pocket service. 
The forms for the necessary entries were drawn by pen or pencil in a 
vest-pocket memorandum. This, however, was found inadequate in space 
and otherwise, to the full and complete development of the experiments. 
The work had assumed such interest also, that it was decided to design 
a more elaborate production for the necessary observations and tabula¬ 
tions. The size and style of this booklet was therefore adopted, thereby 
affording greater convenience of entries and more space for extended 
observations, comparisons and deductions. While it does not conform 
to the style in use by foreign Observatories, nor to that of watch build¬ 
ers, it may be conveniently used by both of them. The edition contains 
a large number of experiments of the Author with various watches, for 
the past three and a half years, as well as a large number of blank 
forms, which may be useful to Jewelers, Watch-makers, Students of 
Horology and Time Service Critics who contemplate such work. 

The writer has long been more or less interested in the subject of cor¬ 
rect time service, as a diversion from the arduous exactions of an active 
manufacturing business career. Thirty-two years ago he gave to the City 
of Springfield, Ohio, a system of time signals similar in several respects 
to the present practice of the Telegraph Companies. His private Astro¬ 
nomical Observatory at that time contained a high-class fixed transit in¬ 
strument ; and a combined clock of his own ararngement, with two dials 
and one pendulum, which kept both mean Sidereal and mean Solar or 
local time. The Sidereal clock was frequently corrected by observing at 
night, the transit of Nautical Almanac fixed stars, which are tabulated 
by the Washington and Greenwich Observatories for navigators. The 
Solar time dial could be corrected by the transit of the Sun across the 
meridian, but it was much more convenient and pleasant to utilize the 
Stars by night time for the necessary corrections. The combined clock 
was arranged electrically and mechanically, to strike automatically the 
bell of the Central Station of the Fire Department located a half mile 
distant. The signals were one stroke of the bell for each of the hours, 
viz.: 6 A. M., 7 A. M., Noon, and 6 P. M. These signals were adopted 
by Factories and others, as their local standard time. 

A system of general distribution of an ansolutely reliable and efficient 
time service was a number of years ago originated, and is now carried 
out by the Naval Observatory at Washington. This is accomplished 
through the very able service of the Telegraph Companies, principally 
the Western Union, whose master clocks may be found in every city of 
importance throughout the United States. These clocks are corrected 
each day by observing the signals of the Washington Observatory over 
the telegraph lines. The preceding page illustrates and describes plainly 


2 



and satisfactorily this system of signals and transmission service. Each 
lelegraph Office which receives these noon signals immediately adjusts 
its master clock as nearly as possible to these signals. These high-grade 
clocks are capable of keeping excellent time until the signals are again 
received on the following day, when they are compared and correctly 
set as before. The master clock usually regulates the whole system of 
clocks for each hour in each city to which the Telegraph Company is 
furnishing their time service. The signals from Washington, however, 
are received only once each day, as shown and described on the first 
page. The time at the Naval Observatory is seldom ever more than 
one-tenth second in error. 

A consequence of this modern system of excellent time service, is an 
undoubted higher appreciation of the good performance of watches and 
other time keepers. The running of a watch can be frequently compared 
with the easy accessible master clocks of the Telegraph Companies, or 
with time balls, and with the signals direct from Washington at the tel¬ 
egraph stations. Business offices, which are supplied by telegraph lines 
and their clocks for time service, can also receive the Naval Observa¬ 
tory time clicks or signals at its usual hour, 12 o’clock Washington, by 
special arrangement with the Telegraph Company. The Author, who 
manufactures heavy machinery, has at his desk in his business office, a 
telegraph sounder which is used only for the Observatory signals, com¬ 
ing direct from Washington. The Telegraph Companies have commer¬ 
cial wires in the same office, one of which furnishes time service by its 
master clock to the office and shops. The admirable facilities afore¬ 
mentioned for frequent comparisons have elevated the standard of ex¬ 
cellence in watches, and have induced more critical requirements, and 
greater discrimination in selections by the purchaser. This induces 
greater competition among makers, and better work. 

A person can easily observe the running of a watch to a second, by 
listening to the clicks of the telegraph sounder receiving time signals 
from the Naval Observatory, as shown in the diagram on the second 
preceding page, and comparing them with the second hand of the watch. 
The ticks of a pendulum of a fine regulator beating seconds, can be ob¬ 
served also, and taken as a guide equally well ; but the time is by no 
means so reliable as the Washington signals. Time is much more easily 
obtained accurately by listening to these sounds, and comparing them 
with the seconds pointer of a watch, or chronometer than to attempt to 
observe the movements of the seconds pointers or hands of the two in¬ 
struments being compared. In the latter case the problem depends up¬ 
on the sight, and the ability of counting seconds properly while passing 
from one piece to another; whereas in the former both the eye and the 
ear are employed. These observations soon become very interesting, 
and the practice a pleasurable pastime, occupying' a very small part of 
a business man’s time where a telegraph line is in his office. 

Fractional seconds may also be easily obtained after some practice, if 
the jumping movement of the second hand is carefully observed. The 
eye can be materially assisted by using a single Plano-convex Lens, of 
about one and a half inch focus, holding the flat side of the lens toward 
the second hand or pointer. When this observation is made a few times, 
it will not be difficult to decide quite readily whether the thirtieth sec¬ 
ond or sixtieth second click shown and explained on page one, comes 
with the jumping second pointer directly on a division mark, line or dot 
of the seconds circle. It can as easily be observed and decided when 
the sounder and the pointer coincide near a seconds mark, or at the 
middle between two consecutive marks. If very near, it may be esti¬ 
mated and entered in the note sheet, a tenth faster or slower; when just 
clear of a seconds mark, it may be regarded as two-tenths, when very 
near the center, four or six-tenths, and when directly at the center a 
half second. Note at once the number of seconds in the seconds circle, 
and fractional parts of the space between marks, that the pointer indi¬ 
cates. If this is before the sixtieth second point, the piece is slow, when 
after the sixtieth mark, time is fast. This is the practice of the writer, 
and is a matter of ease and accuracy after some experience comparing 
with standards, and with stars crossing the meridian. 

A large number of completed tables will be found in the following 
pages. These were prepared with the object in view, and in the general 
manner, already described. The “Explanation of Tables” following this 
preface article, gives the detailed method of entries and deductions nec¬ 
essary. The whole is pen-work and no type-setting; haying been ex¬ 
ecuted by an expert penman, from the detailed notes and instructions of 


3 



the Author. The pen-work was then photographed and etched on zmc 
plates, from which the printing was done. The tables are frequently in 
sets of two or three watches, which were observed and tested at the 
same time, in exactly the same manner. Some of the comparisons run 
through one, two and three months, affording undoubted evidence as to 
the degrees of excellence or quality of each of the pieces for time keep¬ 
ing at that time and under the same conditions. When two or more 
were tested simultaneously, it was done with extreme care, accuracy 
and impartiality, that the comparison of results might be thoroughly re¬ 
liable. Different pieces of the same make and grade, or the same pieces 
at different times, never give uniformly the same records. Nor does the 
same piece give the same results when carried by different per&ons. This 
latter circumstance gives rise to an always existing personal equasion, 
seemingly without a remedy. The experiments can, however, be con¬ 
ducted so carefully and reliably, by carrying a number of each manu¬ 
facturer, that the mean results will determine quite conclusively, their 
comparative excellence in time service. 

Tables 21 and 22, pages 34 and 35, exhibit results almost impossible 
to repeat; certainly not to be excelled. They were made from most 
careful and painstaking observations of the Author’s watch running six¬ 
ty days divided in twelve periods. This test was made with the pendant 
practically up during the whole time. It was worn in the vest pocket 
during the day, and hung vertically at night. Such uniformity of posi¬ 
tion, however, results in a closer time service, than could be expected 
from watches in the varied positions in several other tables. These two 
show a remarkable run. The net gain in sixty days was a one-half sec¬ 
ond only; and the extreme variation only 3.3 seconds, since within the 
sixty days it ran as fast as 1.7 seconds, and as slow as 1.0 seconds. The 
tables are an example of practically perfect regulation, adjustment and 
time keeping, in this instance and for this watch during the entire sixty 
days; an undoubted and unusual co-incidence of very favorable condi¬ 
tions. It is utterly impossible for any watch, even this one, to maintain 
such results through long periods ; and it should not be expected even of 
high-grade watches, as a general thing, that they compare closely with 
this exceptionally fine work. Watches of whatever make, kind or grade 
are universally addicted to frequent variations in both regulation and 
adjustment, and are often subject to unaccountable irregularities and ec¬ 
centricities. Notwithstanding their many caprices, they afford an exam¬ 
ple of wonderful accuracy of service, and a sample of beauty as a 
sensitive, refined and exquisite mechanism. 

EXPLANATION OF TABLES 

The following pages contain complete tables of three classes, and three 
forms of blanks for the insertion of matter. The first class of tables, A 
to G, pages 0 to 13 inclusive, are compiled from the official certificates 
of the Observatories of Geneva, Switzerland and Kew, Richmond, Eng¬ 
land. This class of tests are uniformly made for 44 days divided in 8 
periods of 5 days each and 4 separate intermediate days. These latter 
being omitted, as mentioned in the footnotes of these tables. Intermed¬ 
iate days afford the time piece an opportunity to assume its rate after 
two important changes in position, and also from and to the ice box and 
the hot box ; therefore, there is no record made of the run between the 
changes and these complimentary days. The Observatory tested watches 
are not regulated closely, and the daily run is consequently entirely 
omitted in their official reports. When estimating the difference of 
“Variations from the Mean Rates,” it is done to the nearest tenth-sec¬ 
ond at the Geneva Observatory, and to the nearest quarter-second at 
Kew. The tables of this booklet calculate to the nearest hundredth- 
second and thereby the numerical values of the co-efficient “Mean Vari¬ 
ation of Rate” are somewhat increased in the Swiss watches. 

The second class of tables are for actual pocket work. They com¬ 
mence on pages 14, 15 and 16, and these three may be taken as samples 
of the completed tests of this class throughout the booklet. The regula¬ 
tion of the pieces in most instances is close, and the daily run of each 
watch whether slow or fast or both was carefully observed and recorded. 
The first column gives the date, the second the daily run, while the third 
shows how much was the gain or loss between each consecutive day. If 
the run was fast the plus sign precedes the amount representing the dif¬ 
ference between the runs, if slow then the minus sign is used. An ex¬ 
amination of the results in several of these columns will easily disclose 
how these signs would be applied. The fourth column is obtained by 


4 









dividing by 5 the difference of the plus and minus daily rates in each 
period, and will take the sign of the amount divided. This operation can 
be performed also by dividing the difference between the two numbers 
just above the heavy lines by 5, as the 5 day period is included between 
these lines. The fifth column is obtained by finding the difference be¬ 
tween the “Mean Daily Rate” and each of the “Daily Rates.” It is 
somewhat more difficult to ascertain for this column the signs that 
should precede the amounts, but a little thought and attention to the 
entries will eanble one to understand this item. The plus amounts when 
added will always equal the minus quantities numerically, and therefore 
the result will take both signs in the sixth column “Mean Variation of 
Rate.” This last column is the determining factor of excellence in time 
keeping for all time pieces; the smaller it is the better. 

The third class of tables, 46 to 51 inclusive, pages 57 to 62. consists 
of diagrams showing in black and colored irregular lines, the graphic 
projections of the four important elements common to all the pocket test 
tables, but especially those above mentioned. The colored lines repre¬ 
sent different watches; as many as three being exhibited in table 46, 
comprising one English and two American samples. The diagram is sup¬ 
posed to be divided horizontally into 30 days, and the entire vertical 
height into 60 tenths of seconds, both of which are illustrated in the 
blank diagram on page 63. The elements or matter represented by the 
proiected lines are designated by letters, and described in the first ver¬ 
tical column of each diagram; these should be carefully examined to un¬ 
derstand clearly the work. The group of projected lines in the upper 
half of each diagram represents columns 4 and 5 of the tables of tests, 
and are lines V and X. The lower half of diagrams exhibit columns 6 
and 7 of tables, and is shown by lines Y and Z. Each group has its 
origin and development about an imaginary central horizontal line, rep¬ 
resenting correct time. These are shown by two unusually heavy lines, 
running across the blank diagram on page 63. The lines V and Y ad¬ 
vance horizontally by days, and X, Z by 5 day steps. All projected lines 
rise and fall by tenths and hundredths of seconds. The diagram should 
be divided vertically into 60 seconds instead of tenths for watches not 
somewhat closely regulated, or for those of inferior grade or adjustment 
having large variations in their run. The vertical movements of the 
lines then should represent seconds instead of tenths, but the horizontal 
movements could remain the same as before. 

The three different stvles of blank forms or diagrams mentioned in 
the first paragraph of “Explanation of Tables,” may be found on pages 
63, 65 and 67, as well as on several other pages following. The one on 
page 63 is intended for projecting the elements of a completed pocket 
test table by lines; in the same manner as for the immediate preceding 
six pages. In this diagram all of the lines enclosing the blocks or 
squares are retained, that the work may be more easily accomplished. 
All of the horizontal squares represent days, while all of the vertical 
squares represent tenths of seconds; and the variations or undulations 
of all of the lines vertically, will therefore be by tenths and hundredths 
of seconds. These vertical squares may represent seconds, when tracing 
the results of watches net closely regulated or of a medium or lower 
grade quality. The variations would then be in seconds and tenths of 
seconds. This will reduce the apparent abruptness and irregularity of 
the proiected lines, and will confine them within the upper and lower 
border limits. If it is desired to trace out the results of several pieces, 
such a diagram would hardly be suitable, with its many lines, to pro¬ 
duce satisfactory work, as the tracings of the lines and the lines of the 
diagram might so conflict as to induce confusion. It is, however, con¬ 
venient for tracing the lines of a single piece. 

The blank form on page 65 is the form in general use throughout the 
booklet, and is intended for entering observations and the detailed de¬ 
ductions and results shown throughout this publication. Page 67 shows 
an extra blank, which is occasionally inserted, and is designed to accom¬ 
pany the usual blank form, for any entry of some additional matter 
under somewhat different circumstances. A change from the fixed loca¬ 
tion of the observer, or a different standard of time service, and greater 
detailed remarks, may occasionally be serviceable, when recorded in this 
blank form. These blanks are printed on fine heavy ledger paper, that 
the pen entries of data, and erasures of errors, may be done with ease 
and convenience. Apology is hereby offered for any errors in this treat¬ 
ise, which may have inadvertently occurred. p. ^ J3 00 kwalter. 

January 8, 1911. 


5 



(TABLE A J.TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE A ) 

WATCH ( A ) N?. 132676 SWISS.GENEVA OBSERVATORY RESULTS GIVEN BELOW. 

1906 

Tempe- 

S 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Mean 

Nov. 

rature 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up vt. 

Temp 


Cent. 



Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

erature 

16 

17°.7 


+ 2.9 


-0.08 


Vert. 

Vert. 

Cent. 

17 

17°.9 


+ 3.1 


+ 0.12 


M 

99 


18 

18°.0 


+ 2.7 


-0.28 


ft 

If 


(3 

18°.3 


+ 3.0 


+ 0.02 


M 

99 


20 

18°. 3 


+ 3.2 

+ 2.98 

+ 0.22 

±0.14 

• 1 

If 

18°. 04 

21 

17°. 9 


+ 3.7 


+ 0.34 


Right 

Vert. 


zz 

17°.4 


+ 3.3 


-0.06 


II 

II 


23 

17°.7 


+ 3.6 


+ 0.24 


II 

M 


24 

18°.3' 


+ 3.4 


+ 0.04 


H 

II 


25 

15°.9 


+ 2.0 

+ 3.36 

-0.56 

±0.25 

«« 

II 

18°. 04 

26 

I8°.9 


+ 4.0 


-0.04 


Left 

Vert. 


27 

19°.3 


+ 3.8 


-0.24 


ii 

Ii 


28 

19°,9 


+ 4.0 


-0,04 


ii 

fl 


23 

19°.7 


+ 4.0 


-0.04 


ii 

•I 


30 

19°.7 


+4.4 

+4.04 

+ 0.36 

±0.14 

if 

if 

19°. 50 

Dec. 

1 °.2 


+ 3.7 


-0.2 Z 


Hor. 

Up Hor 

In 

3 

1 M 


+ 4.2 


+ 0.28 


•• 

II 

Refri- 

4 

1 M 


+ 4.0 


+ 0.08 


09 

It 

ERATOR 

5 

1 °.o 


+ 3.7 


-0.22 


II 

M 


6 

1 °.o 


+ 4.0 

+ 3.92 

+ 0.08 

±0.18 

II 

II 

r.oa 

8 

17°.0 


+ 3.9 


+ 0.10 


Hor. 

Up 


9 

16°.4 


+ 3.7 


-0.10 


If 

f* 


10 

15°.6 


+ 3.7 


-0.10 


99 

#i 


II 

15°.6 


+ 3.6 


-0.20 


99 

ii 


12 

16 M 


+ 4.1 

+ 3.80 

+ 0.30 

±0.16 

94 

ii 

I6J4 

14 

32°.0 


+ 4.0 


+ 0.08 


Hor. 

Up 


15 

3 2°.l 


+ 4.1 


+ 0.16 


9 1 

90 

In 

16 

3Z\1 


+ 3.7 


-0.22 


19 

09 

Oven 

17 

32°. 9 


+ 3.9 


-0.02 


•• 

09 


18 

31 °.9 


+ 3.9 

+ 3.92 

-0.02 

±0.10 

II 

99 

32*. 14 

Average for 6 Periods 

-+3.67 Average 

•±0.16 

S-Slow, F-Fast. + Gain 

-Loss ,Vt -Vertical. Hor.-Horizontal Jemp.Temperature.Nt." Night, Da.-Day, Dn.-ftown. 

These results are 

copied from the Geneva Observatory first class certificate eiven 

this watch in its competitive trial. The four intermediate day records Dec.l~7‘ 

-I3&I9 

are omitted here w 

thout any 

change whatever of results. 




Observatory test completed on 

followin 

4 Page. 





6 




















































(TABLE BLTIME SERVICE RECORDS OFFINETiHE PIECES IN SECONDS AND DECIMALS.(TABLE B ) 


WATCH ( A ) NQ.132676 CONTINUED FROM PRECEDING PAGE. 


1908 

Dec. 

1 empe- 
rature 

s 

F 

Dai \y 
Rate 

Mean 
Dai ly 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

race 

Up vt. 
or Dn. 

Mean 

Tempe¬ 

rature 


Cent. 



20 

16°. 8 


+ 4.0 

* 

+ 0. £8 


Hor. 

Down 

Cent. 

21 

(6°. 2 


+ 3.5 


-0.22 


is 

16 


22 

15°. 6 


+ 3.8 


+ 0.08 


S3 

61 


23 

15° 8 


+ 3.7 


-0.02 


II 

It 


24 

IS! 7 


+ 3.6 

+ 3.72 

-0.12 

±0.14 

<1 

13 

is:i$ 

25 

i5:s 


+ 2.3 


-0.02 


Vert. 

Vert. 


26 

ie: 3 


+ 2.6 


+ 0.28 


II 

M 


27 

16°. 2 


+ 2.0 


- 0.32 


•1 

61 


28 

is:4 


+ 2.4 


+ 0.08 


II 

01 


23 

is: 2 


+ 2.3 

+ 2.32 

-0.02 

±0.14 

Cl 

69 

15:74 


• 


• 


— 






• 


— 


— 






• 


• 


— 






• 


• 


— 





Mean for 2 Periods 

+ 3.0 ti 

— 

±0.14 





* 


» 


— 


• 






• 


— 





Geneva Observatory Results 

With This Watch 

Mean Variation of Rate—±0,13 

Position Adjustment..-. + C.40 

1 emperature Compensation ±.0 05 

F irst & Last Run Difference-0.66 
POINTS of Merit Awarded £57.8 

— 





— 





— 





— 





— 





— 





— 





— 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 




Average for 8 Periods +3.5) Average±Q.|S 

5-Slow. F'Fast. + Oam 


■ Los s,Vt.-V ertical, Hor.-Horizorita!,Temp.-Tefnperature < Mt.~Ni^ht t Da.-Day, Dn.-Down 

Variations from Rates’were calculated by hundredths of seconds for this table, 
instead of tenths,as in the certificate.Thereby the Variation Factor was changed 
from ±0.13 to ±0.156 secs. See explanation of table. 


i 



















































































(TABLE C JJIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND QUARTERS.(TABLE C ) 

WATCH (A ) N9.I32676 

WITH KEW OBSERVATORY RESULTS GIVEN BELOW 

1907 

Timed 

s 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Tempe' 

Feb. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

rature 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

Fahr. 

(5 



+ 0.5 


+ 0.55 


Vert. 

Vert. 


16 



-0.0 


+ 0.05 


H 

ft 


17 



+ 0.25 


+ 0.30 


If 

tt 


18 



-0.5 


-0.45 


ft 

ft 


19 



-0.5 

-0.05 

-0.45 

±0.36 

It 

tt 

64° 

20 



+ 0.25 

• 

-0.90 


Right 

Vert. 


21 



+ 1 .25 


+ 0.10 


if 

ii 


22 



+ 1 .0 


- 0.15 


if 

tt 


23 



+ 1 .5 


+ 0.35 


if 

tt 


24 



+ 1 .75 

+ 1.15 

+ 0:60 

±0.42 

ii 

fi 

64° 

25 



-0.0 


+ 0.25 


Left 

Vert. 


26 



-0.5 


-0.25 



ii 


21 



-0.75 


- 0.50 


if 

if 


26 



-0.0 


+ 0.25 


M 

if 


Mar. 



-0.0 

-0.25 

+ 0.25 

±0.30 

if 

tt 

65 0 

3 



+ 1 .0 


+ 0.15 


Nor. 

Up 


4 



+ 1 .0 


+ 0.15 


•i 

it 


5 



+ 0.25 


-0.60 


n 

ff 


6 



+ 1 .0 


+ 0.15 


ff 

it 


7 



+ 1 .0 

+ 0.85 

+ 0.15 

±0.24 

if 

!• 

4} ° 

9 



+ 1 .0 


-0.05 


Hor. 

Up 


10 



+ 1 .25 


+ 0.20 


ff 

•t 


II 



+ 1 .0 


-0.05 


•i 

tt 


12 



+ 0.5 


-0.55 


ff 

tt 


13 



+ 1.5 

+ 1.05 

+ 0.45 

±0.26 

ii 

tt 

65° 

15 



+ 0.25 


-0.60 


Hor. 

Up 


16 



+ 0.75 


-0.10 


H 

a 

In 

17 



+ 1 .25 


+ 0.40 


ff 

if 

Oven 

18 



+ 0.75 


-0.10 


fl 

•f 


19 



+ 1 .25 

+ 0.85 

+ 0.40 

±0.32 

if 

if 

90 6 

Average for 6 Periods 

+ 0.60 Average 

>± 0.3 Z 

S-Slow, F*Fast, + Gain 

-Loss.VT.-Vertical, Hor.-Horizontal,Ternp.-Temperature,Nt. - Night, Da.-Day, Dn.-Down. 

These results 

are 

copied from the Kevv England Observatory first class certi- 

ficate given 

this 

watch in 

its competative trial. The four intermediate day re- 

cords of tri 

al Mar.2‘8'l4&20 are omitted here without any change whatever of 

resu 

Its. Sec 

following Page. 







s 



















































(TABLE Pl.TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND QUARTERS.(TABLE 0 ) 


WATCH ( A ) N9. 132676 KEW RESULTS BELOW. 


1907 

Mar. 

Timed 

Daily 

s 

F 

Dai 1/ 
Rate 

M ean 
Dai 1 y 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up Vt. 
or Dn. 

Tempe¬ 

rature 

Fahr. 





21 



+ 0.25 


-0.15 


Hor. 

Down 


22 



+ 0.25 


-0.15 


m 

•• 


23 



+ 0.25 


-0.15 


M 

If 


24- 



+ 0.75 


+ 0.35 


f 

ft 


25 



+ 0.50 

+ 0.40 

+ 0.10 

±0.18 

M 

91 

65 • 

26 



+ 0 ,25 


-0.00 


Vert 

Vert 


21 



+ 0 .50 


+ 0.25 


If 

«i 


28 



+ 0.50 


+ 0.25 


• • 

01 


23 



+ 0 .0 


-0.25 


•# 

U 


30 



+ 0.0 

+ 0.25 

-0.25 

±0.20 

it 

It 

65 * 




— 


— 








— 


— 








— 


— 








— 


— 





Mean for 

2 P 

?riods 

+ 0.33 

— 

±0.19 





• 


• 


— 





Kew Observatory Results - 
With Tkis Watch 

Meah Variation of Rate...10.29 

Position Adjustment...10.52 

Temperature Compensahon+.00 1 
First & Last Run Difference+0.20 
MaRKS of Merit A warded... 91.8 

— 





— 





— 





— 

+ 




- 





— . 





— 





— 






• 


- 

— 

— 

+ 





• 


— 


— 






• 


— 


— 






• 


- 


— 






• 


— 


— 






• 


— # 

— 

— 

+ 





Average for 8 Periods + 0.53 Averatfe±0.285 


S-Slow. F*Fast, + Gain 


-Loss .Vt-V ertical. Hor.-tlori/ontal.Temp.-Temperature.Nt* Night,Da.-Day, Dn.-Down. 


Notes Observator y test concluded from precedin g Pa ^e. 


The Kew tests are made b y q uarter seconds. 


0 


































































(TABLE E JJIHE SERVICE RECORDS OF FINE TIME PIECES IK SECONDS AND QUARTER5.(TABLE E ) 

WATCH (C )N9. 

6984 ENGLISH 

KEW OBSERVATORY RESULTS BELOW. 

1907 

Timed 

s 

Dai i y 

M ean 

Variation 

Mean 

Bow 

Face 

Temp. 

JuNt 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor, 

or Dn. 

or Da 

2 



-0.75 


+ 0.05 


Vert. 

Vert. 


3 



- 1 .00 


-0.20 


ii 

n 


4 



-0.75 


+ 0.05 


ii 

II 


5 



-0.75 


+ 0.05 


ii 

ii 


e 



-0.75 

-0.80 

+ 0.05 

+ 0.06 

II 

II 

66° 

7 



- 1 .00 


+ 0.35 


Right 

Vert. 


8 



- i .25 


+ 0. 50 


l< • 

H 


9 



- 1 .25 


+ 0.50 


ii 

Ii 


10 



- 2.00 


-0. 65 


•i 

ii 


11 



- 1 .25 

-1.35 

+ O'. !0 

+ 0.26 

•« 

ii 

67* 

1 z 



- 1 .00 


-0. 10 


Left 

Vert. 


13 



- 1 .00 


-0. 10 


ii 

ti 


14 



- 0.75 


+ 0. 15 


» 

li 


15 



- I ,25 


-0.35 


ii 

n 


16 



-0.50 

-0.90 

+ 0.40 

+ 0.22 

l» 

II 

65* 

18 



+ ! .25 


+ 0.45 


•Hor . 

Up 


19 



+ 0.75 


-0.05 


M 

ii 


20 



+ 0.75 


-0. 05 


II 

i> 


21 



+ 0.50 


-0. 30 


IS 

H 


22 



+ 0.75 

+ 0.80 

-0. 05 

10.18 

II 

ii 

4l e 

24 



-2.00 


-0. 75 


Hor . 

Up 


25 



- 1 .00 


+ 0. 25 


II 

01 


26 



-0.75 


+ 0. 50 


1* 

M 


27 



- 1 .25 


-0. 00 


II 

II 


26 



- 1 .25 

- 1.2 5 

-0. 00 

1 0.30 

M 

M 

64° 

30 



-0.25 


-0. 25 


Hor . 

Up 


Jul^ 



+ 0.25 


+ 0. 25 


•i 

Ii 

In 

2 



-0.00 


-0. 00 


H 

M 

Oven 

3 



-0.00 


-0.00 


ii 

II 


4 



-0.00 

- 0.00 

“0.00 

+ 0.10 

Ii 

II 

91 0 

Average for € 

> Periods 

— 0.58 Average 

+ 0.19 

S-Slow, p- Fast, + Gain 

-Loss, Vt. -Vertical. Hor.-HorizontaS,Temp.-Temperature,Nt.-Night, Da-Day, Dn.-Down. 

These results are copied from the Kew England Observatory first class 

certi- 

fica 

e given 

:his watch in 

its competative trial.The four intermediate day re- 

cords of tria 

June 17*23-29 and July 5 are 

omitted here without any c 

hange 

whj 

itever o 

results. See following Page 






10 

















































(TABLE FJ.TIME SERVICE RECORDS OFFiNETIME PIECES IN SECONDS AND QUARTERSfTABLE F 


WATCHf C )N°.6334 ENGLISH CONTINUED FROM OPPOSITE PACE 


1907 

July 

Timed 
Dai ly 

s 

F 

Dai ly 
Rate 

Mean 
Dai ly 
Rate 

Variation 
from flean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 

Up vt. 
or Dn. 

Fempe 
ra.tu.re 
Fa hr. 





G 



+ 2 .00 


-0.00 


Hor. 

Up 


7 



+ 1 .25 


-0.75 


m 

It 


8 



+ 2 .25 


+ 0.25 


n 

«« 


9 



+ 2.25 


+ 0.25 


• • 

ii 


10 



+ 2.25 

+ 2.00 

+ 0 .25 

±0.30 

• i 

li 

66° 

11 



- ! .75 


-0.55 


Hor 

DcvvN 


12, 



- 1 .25 


-0.05 


it 

IS 


13 



- 1 .00 


+ 0.20 



II 


14 



-0.50 


+ 0.70 


ti 

II 


15 



- 1 .50 

-1.20 

-0.30 

±0.36 

it 

II 

66° 




- 


— 


Vert 

Vert 





— 


— 


m 

ii 





- 


- 


n 

ii 





- 


— 


ii 

ii 


Mean forZ Periods 

-0.40 

— 

±0.33 

SI 

ii 





• 


- 








— 


- 





Kew Observatory Results 

With Tms Watch 

Meah Variation of Rate ...±0,22 

Position Adjustment.+0.90 

Temperature Compensation ±0.04 
First & Last Run Difference-fQ.40 
Narks of Nerit Awarded...88.6 

— 




— 

— 




- 

+ 




— 





- 





— 





— 





— 

+ 







- 


— 








— 


— 








- 


— 








— 


— 








— 

— 

— 

+ 





Average for Q Periods —0.34 Average!] 0.2. Z 


3- Slow, p-Fast,*FGain 


-Loss ,Vt. -Vertical. (lor.- Horizontal.Temp.-Temperature. Nt.~ Ni^ht,Da.- Day, Dn.-Dcwn. 

Notes. Observatory test concluded from preceding Page. 






















































































(TABLE G).TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE G ) 

WATCH( I )N?.Z8428 SWISS.GENEVA OBSERVATORY RESULTS BELOW. 

1908 

Temp. 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Tempe' 

June. 

Cent. 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

rature 


Decrees 



Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

Cent. 

2 

20.1 


-1-2.2 


+ 0.08 


Up 

Vert. 


3 

20.9 


+ 2.0 


-0.12 


i* 

• • 


4 

21.7 


4 2.2 


+ 0.00 


ii 

• • 


5 

22.0 


+ 2.0 


-0.12 


ft 

ii 


6 

22.0 


+ 2.2 

+ 2.12 

+ 0.08 

±0.10 

it 

•• 

2I.°5 

7 

21 .2 


+ 2.4 


-0.14 


Right 

Vert. 


8 

19.6 


+ 2.3 


-0.24 


•i 

«i 


9 

18.5 


+ 2.7 


+ 0.16 


ll 

H 


10 

18.1 


+ 2.6 


+ o.oe 


H 

li 


II 

18 .2 


+ 2.7 

+ 2.54 

+ 0.16 

±0.15 

li 

•i 

I9.°l 

12 

18.7 


+ 1 .7 


-0.48 


Left 

Vert. 


13 

o 

« 

o 


+ 1 .7 


-0.48 


If 

ii 


14 

21 .0 


+ 2.6 


+ 0.42 


li 

•i 


15 

21 .7 


+ 2.5 


+ 0.32 


i» 

it 


16 

22 .5 


+ 2.4 

+2.16 

+ 0.22 

t 0.38 

II 

•i 

20°8 

18 

1 .0 


+ 2.3 


-0.12 


Hor. 

Up 


19 

1 .3 


+ 2.8 


+ 0.38 


M 

ii 

1 n 

20 

I .3 


+ 2.2 


-0.22 


li 

M 

Cold 

21 

1 .5 


+ 2.4 


-0.02 


ll 

H 


21 

1 .4 


+ 2.4 

+2.42 

-0.02 

tO.15 

H 

II 

l"3 

24 

20.2 


+ 2.7 


+ 0.40 


Hor. 

Up 


as 

20.2 


*2.4 


+ 0.10 


«i 

II 


26 

20.7 


+ 2.0 


-0.30 


li 

ll 


27 

21 .7 


+ 2.3 


-0.00 


ii 

ll 


28 

22.7 


+ 2.1 

+ 2.30 

-0.20 

±0.20 

M 

H 

21.1 

30 

32. 1 


+ 1 .9 


-0.02 


Hor 

Up 


July 

33.7 


+ 1 .5 


-0.42 


H 

ii 

In 

2 

33.8 


+ 2.1 


+ 0.18 


ll 

ii 

Oven 

3 

31 .7 


+ 1 .8 


-0.J2 


It 

ii 


4 

35.5 


+ 2.3 

+ 1.92 

+ 0.38 

10.22 

ii 

li 

3^4 

Average for 6 Periods 

+ 2.25 Averaget 0.20 

S-Slow, F'Fast. + Gain 

-Los s. Vt. -Vertical, hor.-horizontal,Temp.-Temperature,Nt.' Night, Da-Day, Dn.-Down. 

These results are copied from the G«n«va, Swiss Observatory first class certi- 

ficate given this 

watch ir 

its competitive trial. The four intermediate day re- 

cords of tna 

June 17-23 

"29and July 5 are omitted here without any change 

whatever of results. 5ee following Page. 






12 



















































(TABLE HLT1ME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE H ) 


WATCH( I )N?.28420 SWISS CONTINUED FROM PRECEDING PAGE 


1908 

Temp. 

s 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

July 

Cent. 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 


Decrees 



Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

6 

23.3 


+ 1 .4 


+ 0.26 


Hor. 

Down 


7 

23.3 


4- 1.3 


+ 0.16 


ii 

ll 


6 

22.2 


+ 1.2 


+ 0.06 


• i 

II 


9 

21 .9 


+ 0.9 


-0.24 


ft 

ll 


10 

22.3 


+ 0.9 

+ 1.14 

-0.24 

±0.19 

il 

ll 

22!6 

II 

22.4 


+ 2.2 


+ 0.06 


Vert. 

Vert. 


IZ 

22.7 


+ 2.1 


-0.04 


ii 

ii 


13 

23.6 


+ 2.1 


-0.04 


ii 

li 


14 

23.1 


+ 2.0 


-0.14 


ii 

H 


15 

22.2 


+ 2.3 

+2.14 

+ 0.16 

±0.09 

ii 

H 

z?1q 


• 


• 


— 






• 


— 


— 






• 


• 


— 










— 





Mean for Z Periods 

+ 1.64 

— 

±0.14 





• 


• 


— 






• 


• 


— 






• 


• 


— 





Geneva Observatory Results 

— 






With Ibis 

Watch 


— 

+ 




Meah Variation of Rate— 

.±0.16 

— . 





Position Adjustment. 

.+0.31 

— . 





Temperature Compensation 1.0 17 

— # 





First & Last Run 

Difference+0.02 

— 





POINTS of Merit Awarded 

260.2 

— 

+ 







— # 


— 








— # 


— # 








— 


— 








— 


— 








— 

— 

— 

+ 




Average for 8 Periods 

+ Z .09 Average+ 0.19 

S-Slow, F'Fast, + Gain 


- Los s.Vt- Vertical, hor.-Horizontal,Temp.-Teffiperature,Nt.~ Night, Da.-Pay,On -Down. 


Notes: Observatory test concluded from preceding Page. _ 

Variations from Rates’ were calculated b y hundredths of seconds for this 
table,instead of tenths,as in certificate.The M.V.R. factor was thereby 
increased from+0.15 to+0.19 sec. ___ 


13 






































































(TABLE*! )JIME SERVICE RECORDS OF F!ME TIME PIECES !N SECONDS AMD DECIMALS.fTABLE ! 


WATCH (A j N?. 132676 HIGHEST PRIZE SWISS FOR 1307 


1907 

Timed 

s 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Sept. 

Daily 

F- 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Kt 

24 

9.6 

Fast 


Rate 

Daily Rate 

of- Rate 

or Hor. 

or Dn. 

or Da. 

25 

8.6 

«• 

-0.8 


4 0. 02 


Vt. Nt. 

Vt. Nt. 


26 

7.8 

M 

-1.0 


-0. 18 


ll M 

h ii 


27 

7. S 

*1 

- 0. 7 


4 0. 12 


l» II 

M if 


25 

6.4 

If 

-0.7 


40. 12 


II H 

ii ii 


20 

5.5 

It 

-0.9 

- 0.62 

-0.08 

+ 0.10 

1! II 

" IS 


30 

4.6 

It 

- 0.9 


- 0 . 16 


Vt. Nt 

Vt. Nt. 


Oct. 

4.2 

*1 

-0.4 


+ 0. 34 


ii a 

ii ii 


2 

3.8 

fC 

- 0.4 


4 0.34 


ii ii 

n ii 


F 3 

2.6 

It 

- I .2 


-0.46 


ii ii 

it ii 


4 

! .8 

f • 

-0.8 

- 0.74 

-0. 06 

+ 0.27 

ii ii 

ii ii 


5 

S .2 

li 

-0.6 


4 0. 10 


Vt. N’t. 

Vt. Nt. 


6 

0.3 

to 

-0.9 


-0. 20 


ii ii 

ii >i 


7 

0 ,6 

SlOVi 

-0.9 


-0. 20 


ii it 

■I ii 


8 

! .0 

II 

i 

o 

V 

1 


4 0. 30 


II II 

ii ii 


9 

1 .7 

If 

-0.7 

- 0.70 

-0.00 

±0.16 

ii m 

m ii 


10 

2.5 

61 

-0.8 


-0.02 


Vr. Nt 

Vt. Nt. 


il 

3 . S 

a 

- 0.6 


+ .18 


m ii 

h ii 


1 z 

3.8 

n 

-0.7 


4 .08 


ii m 

ll II 


13 

4.7 

it 

- 0.9 


- .12 


it ii 

II H 


14 

5 .6 

it 

-6.9 

-0.78 

- .12 

±0.10 

ii H 

ll ll 



* 


• 


0 






* 


• 


• 






« 


0 


• 






e 


« 


• 






c 


0 

— 

• 

4 





• 


« 


— 






* 


• 


e 






0 


— 


0 






* 


0 


• 






• 


0 

— 

• 

4 




Average for ^ 

- Periods 

-- 0.76 AveracJe'L 0.16 

S-Slow, F*Fast,4Gain 


Loss .Vi.-Vcrti'cal, Hor±3rizonUi,Temp.-Temperaiure,Nt.~Nitfht t Da.-Pay t Dn.~Down. 


Note:-This watch was carried !5toiS hours each day .Temperature while on the 
body 87°io88*likhriJenip«&hout(??L!at ni^ht. The time Standard of comparisorx 
was the W.U.Tel. noon-day signals sent from Washington by the Nava! Observatory. 
Several of the following tables are records of this watch. 


14 







































































































(TABLE 2) TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND PECIMALsTtABLE 2 )| 


WATCH ( B)N9. 19 JEWEL 12 SIZE.AMER. NOT FULLY ADJUSTED 


1907 

Timed 

S 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Dec. 

Dai ly 

F 

Rate 

Dai 1 y 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

30 

3.2 

F. 


Rate 

Daily Rate 

of Rate 

or hor. 

or 

Dn. 

pr Da 

31 

3.5 

ii 

+ 0.3 


+ 0.34 


Vt. Mt 

Vt. 

Nt 


Jan. 

3.5 

II 

- 0.0 


+ 0.04 


ll ll 

i 1 

II 


2 

3.6 

ii 

+ 0.1 


+ 0.14 


ii it 

H 

II 


3 

4.0 

ii 

+ 0.4 


+ 0.44 


ii ii 

ll 

It 


4 

3.0 

ll 

- 1 .0 

- 0.04 

- 0.96 

± 0.38 

II <1 

ll 

II 


5 

2.7 

Ii 

-0.3 


- 0.22 


Vt. Nt. 

Vt. 

Nt. 


6 

2.5 

ll 

-0.2 


-0.12 


ii n 

ii 

ll 


7 

3.0 

fi 

+ 0.5 


+ 0.56 


a ii 

ll 

It 


8 

3.2 

ii 

+ 0.2 


+ 0.25 


a n 

II 

ll 


9 

2.6 

ii 

-0.6 

- 0.08 

-0.52 

+ 0.34 

II II 

ll 

II 


10 

3.0 

ii 

+ 0.4 


+ 0.40 


Vt. NtJ 

Vt. 

Nt 


II 

2.0 

M 

- 1.0 


- 1 .00 


ii H 

ii 

If 


12 

Z\ 3 

ii 

+ 0.3 


+ 0.30 


ll ll 

ll 

ll 


13 

2.1 

ll 

-0.2 


- 0.20 


Hor. N. 

Up. 

ll 


14 

2.6 

ll 

+ 0.5 

-0.00 

+ 0.50 

±0.40 

ll ii 

ii 

II 


15 

2.9 

ii 

+ 0.3 


+ 0.58 


Vt. Nt. 

Vt. 

Nt. 


16 

3.1 

ii 

+ 0.2 


+ 0.48 


ii M 

II 

ii 


17 

3.5 

ii 

+ 0.4 


+ 0.68 


1! II 

n 

il 


18 

2.4 

ii 

- 1 .1 


-0.32 


II II 

ii 

n 


19 

1 .2 

ii 

- 1 .2 

- 0.28 

-0.92 

+ 0.70 

II II 

ii 

n 


20 

0.1 

ll 

- U 


-0.80 


Vt. Nt. 

Vt. 

Nt 


21 

1 .0 

Ii 

+ 0.9 


+ 1 .20 


ii H 

Ii 

II 


22 

0 .9 

ii 

-0J 


+ 0.2 0 


II It 

ll 

il 


23 

0 .2 

M 

-0.7 


-0.40 


ii H 

ii 

H 


24 

0.3 

S. 

-0.5 

- 0, 30 

-0.20 

+ 0.70 

II II 

ii 

ll 



• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 


• 










_ 

+ 






• 


o 


• 

_ 






Average for 5 Periods —0.1*4 Averatfe+ 0»52 


S-Slow, F-Fast,4Gain 


-Loss .Vt. -Verti cal, Uor.- Horizontal,Ternp.-Temperat ure, Nt.~ Nitjht, Da.- Pay, On,-Down. 

Note :-This watch was carried 15 tol6 hours each day. temperature while on the 
body 87 < ’to85°f^hr.,Temp.about59'’at mcjht. fhetime Standard of comparison 
was the W.U.Tel. noon-day signals sent from Washington by the Naval Observatory. 
This watch was taken from a stock lot. Good. 


lo 








































































(TABLE 3J.TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE 3 ) 

WATCH ( A ) N?. 

32676. SWISS WITH AN OBSERVATORY RECORD 257.8 PTS. 

1907 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Dec. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

27 

8.4 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or 

Dri. 

or Da 

26 

8.4 

ii 

o 

• 

o 

i 


-0.10 


Vt. Nt. 

Vt. 

Nt. 


29 

8.3 

li 

+ 0.1 


- 0.00 


it • • 

m 

ii 


30 

8.3 

il 

-0.0 


-0.10 


if il 

ii 

li 


31 

7.8 

ti 

+ 0.5 


+ 0.40 


H a 

il 

ii 


1908 

7.9 

it 

-0.1 

+ 0.10 

-0.20 

±0.16 

il n 

if 

ii 


Jan. 

8.0 

II 

-0.1 


+ 0.10 


Vt. Nt. 

Vt. 

Nt. 


3 

8.3 

H 

-0.3 


-0.10 


M M 

19 

ii 


4 

8 .2 

11 

+ 0.1 


+ 0.30 


II II 

II 

M 


5 

8.5 

II 

-0.3 


-0.10 


II II 

II 

M 


6 

8.9 

II 

-0.4 

- 0.20 

-0.20 

±0.16 

II II 

II 

II 


7 

8.8 

II 

+ 0.1 


+ 0.20 


Vt. Nt. 

Vt. 

Nt. 


8 

9.1 

II 

-0.3 


-0.20 


if il 

ii 

•i 


9 

8.9 

II 

+ 0.2 


+ 0.30 


n n 

ii 

m 


10 

9.7 

II 

-0.8 


-0.70 


M II 

II 

M 


II 

9.4 

H 

+ 0.3 

-0.10 

+ 0.40 

±0.36 

»• ii 

II 

II 


12 

9.7 

•1 

-0.3 


+ 0.10 


Vt. Nt. 

Vt. 

Nt. 


13 

10.2 

M 

-0.5 


-0. 10 


n ii 

ii 

M 


14 

10.7 

II 

-0.5 


-0.10 


a ii 

ii 

II 


15 

If .0 

II 

-0.3 


+ 0. 10 


•l if 

ii 

II 


16 

II .4 

II 

-0.4 

- 0.40 

-0.00 

±0.08 

II M 

li 

II 


17 

II .6 

1# 

-0.2 


+ 0.12 


Vt. Nt. 

Vt. 

Nt. 


18 

12 .Z 

• 1 

-0.6 


-0.28 


II M 

M 

M 


19 

13.0 

II 

-0.8 


-0.4S 


If II 

II 

II 


20 

12.7 

II 

+ 0.3 


+ 0.62 


II II 

If 

II 


21 

13.0 

II 

- 0.3 

-0.32 

+ 0.02 

±0.30 

II II 

II 

II 


2Z 

13.2 

If 

-0.2 


-0.44 


Vt. Nt. 

Vt. 

Nt. 


23 

12.7 

II 

+ 0.5 


+ 0.26 


Il il 

ii 

•I 


24 

12.0 

II 

+ 0.7 


+ 0.46 


M If 

ii 

If 


25 

12.2 

II 

-0.2 


-0.44 


il it 

ii 

i# 


26 

II .8 

<1 

+ 0.4 

+ 0.24 

+ 0.16 

±0.35 

II n 

fi 

ll 


Average for 6 Periods 

— 0.113 Average! 0-23 

S-Slow, F-Fast, + Gain 

- Loss, Vt. -Vertical, Hor.- Horizontal,Temp.-Temperature,Nt "Night,Da.-Day, Dn.-Down. 

Note:-This watch 

was earned 15 to 16 hours eac 

h day.Tem 

perature 

while on the 

body 87°to83°Fah 

r.,Temp.about54 at night. The time Standard of comparison 

was the W.u.Tel. noon-day 

signals sent from Washington by the Naval Observatory. 

Cont 

nued on lollowinq 

paqe. 
























































(TABLE 4J.TIME SERVICE RECORDS OFFIMCTIME PIECES IN SECONDS AND DECIMALS.fTABLE 4 ) 

WATCH ( A )N 9. 

132676. CONTINUED FROM PRECEDING PAGE. 

1908 

Timed 

S 

Dai ly 

M ean 

Variation 

Mean 

Bow 

Face 

Temp. 

Jan. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

26 

11.8 

S 


Rate 

Daily Rate 

of Rate 

or hor. 

or Dn. 

or Da 

27 

12.2 

M 

-0 .4 


-0.46 


Vt. Nt. 

Vt. Nt 


ZQ 

II .2 

<i 

+ 1.0 


+ 0.94 


ft II 

ft fi 


29 

11.5 

H 

-0.3 


-0.36 


ft If 

ii H 


30 

11.3 

M 

+ 0.2 


+ 0. 14 


if •• 

n n 


31 

I/.5 

If 

-0.2 

+ 0.06 

-0.26 

±0.43 

II M 

fi n 

. 

Mar. 

II .4 

II 

+ 0.1 


+ 0.22 


Vt. Nt. 

Vt. Nt. 


2 

11.3 

n 

+ 0.1 


+ 0.22 


Hor. Nt 

Dn. Nt. 


3 

12.2 

II 

-0.9 


- 0.78 


if M 

ii ii 


4 

12.3 

II 

-0.1 


+ 0.02 


Vt. Nt 

Vt. Nt. 


5 

12.1 

II 

+ 0.2 

-0.12 

+ 0.32 

±0.31 

H i» 

H M 


6 

12.8 

n 

- 0.7 


-0.38 


Vt. Nt. 

Vt. Nt. 


7 

12.8 

II 

-0.0 


+ 0.32 


M II 

M fl 


8 

13.0 

II 

-0.2 


+ 0.12 


II H 

ll •• 


9 

13.4 

II 

-0.4 


-0.08 


If 99 

M fl 


10 

13.7 

II 

-0.3 

-0.32 

+ 0.02 

± o.ia 

II II 

fl II 



• 


• 


• 






. 


— 


• 






. 


• 


— 






• 


• 


• 





Mean of 

3 Periods 

- 0.125 

• 

±0.31 





• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 


• 






t 


• 

— 

• 

+ 





• 


• 


• 






• 


9 


• 






• 


• 


« 






• 


• 


• 






• 


• 

— 

• 

+ 




Average for 9 Periods 

— 0.12 Average 

•± 0.26 

S-Slow, F*Fast, + Gain 

-Loss.VT.-Vertical. Hor.-Hon'zontal.Temp.-Temperature.Nt. - Night, Da.-Day, Dn.-Dowrj. 

Note:-The tabulated results above were obtai 

ned by a 

Pocket 

test com 

Jucted 

in the same 

nanner as for Tables 

1.2.3, Pag 

es 14.15,16. The R 

cgulation was 

in no instance changed during the Trial Run. Page 4 further explains. 

Note: 









17 



























































(TABLE 5JJINE SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DEClMALS.fTABLE 5 ) 


WATCH( 8 )N?.i2 SIZE 19 JEWEL.A STOCK YVA 


isoa 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

dune 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

i 

2.3 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or 

Dn. 

or Da 

z 

1 .3 

tt 

4- 1 .5 


+ 0.68 


Vt. Nt 

Vt. 

Nt. 


3 

I .0 

a 

+ 0.3 


-0.52 


It it 

ii 

n 


4 

! .2 

is 

-0.2 


- I .02 


M II 

ti 

ii 


5 

i .2 

a 

-0.0 


-0.82 


It U 

«i 

n 


6 

l .3 

E 

+ 2.5 

+0.82 

+ ! .68 

±0.94 

It It 

n 

ti 


7 

3.2 

l« 

+ 1 .9 


+ 0.52 


Vr. Nt. 

Vt. 

Nt. 


a 

5.0 

II 

+ i .8 


+ 0.42 


ii n 

ii 

n 


9 

6,2 

II 

+ i .2 


-0.18 


Jl li 

tt 

n 


5(5 

7 .Z 

19 

+ 5 .0 


-0.38 


II It 

tl 

It 


f i 

6.2 

II 

+ 1 .0 

+ 5.38 

-0.36 

±0.36 

tt it 

IS 

Ii 


12 

3.0 

IJ 

+ 0,8 


-0.40 


Vr. Nt. 

Vt. 

Nr. 


13 

II .4 

» 

+ 2.4 


+ 1.20 


tt >• 

n 

ii 


14 

52.4 

(f 

+ 3 .0 


-0.20 


n ti 

H 

M 


55 

54.0 

II 

+ 5.6 


1-0.40 


H « 

a 

ii 


16 

14.2 

II 

+ 0.2 

+ 1.20 

-i .00 

±0.64 

X it 

n 

II 


17 

13.6 

II 

-0.4 


o 

© 

• 

i 


Vt. Nt. 

Vr. 

Nt. 


13 

54.8 

It 

+ i ,0 


+ 0.40 


it ti 

n 

m 


13 

15.2 

II 

+0.4 


-0.20 


ii it 

if 

i< 


20 

16,0 

II 

1-0. s 


+ 0.20 


ii it 

i» 

tt 


21 

S7.2 

II 

+ 5 .2 

+0.60 

+ 0.60 

±0.48 

(1 Ii 

a 

ii 





• 


— 








• 


— 








• 


— 








• 


— 








• 

— 

— 

± 







• 


— 








• 


— 








0 


— 








• 


— 








0 

— 

— 

+ 





CH. AMERICAN. 


Average for 4 Periods + 5.QQ Averatfe± Q.61 


S-Slow, F- Fast, + Gain 


-Loss .Vr-Vertical, flor.- Horizontal Jemp.Temperature, Nt.~ Wight, Da.-Day, Dn.-Down. 

Notes: Same piece as tabie Z and tested in same manner. 


18 





























































(TABLE 6J.TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE 6 ) 

WATCH (e )N9.I6 SIZE 21 JEWEL. AMER. SPECIAL SELECTION. 

1908 

Timed 

S 

Dai 1 y 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Dai ly 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

1 

5.8 

R 


Rate 

Daily Rate 

of Rate 

or Hor 

or Dn 

or Da 


5.1 

ii 

-0.7 


+ 0.26 


Vt. Nt 

Vt. Nt. 


3 

5.6 

i • 

f 0.7 


+ 1 .66 


• a •• 

«i <i 


4 

2.8 

•« 

o 

oo 

1 


- 2.04 


• i ti 

•i if 


5 

2.8 

I* 

-0 0' 


+ 0.36 


«t «l 

if it 


6 

1 .0 

if 

- 1 .8 

-0.36 

- 0.84 

±1.15 

if <1 

ii fi 


7 

f .0 

»i 

-o.o 


+ 0.30 


Vt. Nt 

Vt. Nt 


8 

0.8 

H 

-0.2 


+ 0. 10 


n H 

it •» 


9 

1 .0 

S. 

- 1.3 


-1.50 


it it 

if it 


10 

1 .2 

ii 

-0.2 


+ 0.10 


it ii 

if •( 


II 

0.5 

•• 

+ 0,7 

-0.30 

+ 1 .00 

i •+- 

o 

o 

i« H 

ii it 


12 

1 2 

n 

- 0.7 


+ 0.02 


Vt Nt 

Vt. Nt 


13 

2.7 


- 1 .5 


-0 78 


If M 

it o 


14 

3.2 

<1 

-0 5 


+ 0.2.2 


•I ft 

•i if 


15 

4.2 

•1 

- 1.0 


-0.28 


l» •• 

•• if 


16 

4.1 

■ 1 

+ 0 1 

-0.72 

4-0.82 

t 0.42 

II I# 

f* •( 


17 

4.3 

II 

-0 2 


+ 0.58 


Vr. Nt 

Vt. Nt. 


16 

4 8 

u 

-0.5 


4-0.28 


M »• 

Ii n 


19 

6 6 

«« 

-1.8 


- 1 .02 


•» n 

•* H 


20 

7.3 

M 

- 0.7 


+ 0.06 


II t| 

40 ft 


21 

8.0 

it 

-0.7 

-0.78 

+ o.os 

1 0.41 

|f 1) 

« If 



. 




— 








♦ 


- 








• 


- 








* 










- 

- 

— 

+ 







% 


- 








- 


t 








- 


- 








• 


- 








• 

— 

— 

+ 




Average for A 

* Periods 

- 0.69 Average 

±0.65 

S-Slow, F • Past, 4* Gain 

-Los 5 .Vt. -Vertical,Mor.-Horizontal Jemp. Temperature, Nt"Night, Da.-Day,Dn 'Down. 

Notes 

Tested 

tn same way 

as heretofore . Watch A was earned at same 

time 

wi th 

result ±0.31 M.V.R. 









10 












































































(TABLE 7)JIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE 7 ) 

WATCH! C.) N9.6984ENGLISH.WITH KEW0B5ERVA 1 

FORY RECORD 88.6Mltt 

1908 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Sf.pt 

Daily 

F 

Rate 

Dai !y 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

3 

14.2 

F 


Rate 

Daily Rate 

of Rate 

or Hor. 

or 

Dn. 

or Da 

4 

14.3 

S 

-0.1 


+ 0.18 


Vt. Nt. 

Vt. 

Nt. 


5 

14.7 

li 

-0.4 


-0.12 


ii n 

u 

II 


6 

14.9 

It 

-0.2 


+ 0.08 


H n 

II 

•1 


7 

15.2 

II 

-0.3 


-0.02 


M II 

II 

M 


8 

15.6 

II 

-0.4 

-0.28 

-0.12 

+ 0.10 

n ii 

II 

ii 


9 

15.3 

n 

-0.3 


+ 0.16 


Vt. Nt 

Vt. 

Nt. 


10 

16.2 

M 

CO 

• 

o 

1 


+ 0.16 


ii M 

ii 

M 


II 

17.0 

n 

-0.8 


-0.34 


ii ii 

•i 

•1 


12 

17.5 

it 

-0.5 


-0.04 


ii H 

ii 

•i 


13 

17.9 

H 

-0.4 

-0.46 

+ 0.06 

±0.15 

n I* 

n 

n 


14 

16.2 

n 

-0.3 


+ 0.10 


Vt. Nt. 

Vt. 

Nt. 


15 

18.7 

n 

-0.5 


-0.10 


H •' 

ii 

ii 


16 

19.2 

n 

in 

• 

o 

i 


-0.10 


ii n 

n 

ii 


17 

S9.6 

ii 

-0.4 


-0.00 


n ii 

ii 

M 


18 

19.9 

n 

-0.3 

-0.40 

+ 0.10 

±0.08 

it u 

ll 

ii 


19 

20.2 

ii 

-0.3 


+ 0.16 


Vt. Nt. 

Vt. 

Nt 


20 

20.7 

ii 

-0.5 


-0.04 


• i Ii 

•i 

» 


21 

21.2 

H 

-0.5 


-0.04 


It II , 

ii 

N 


22 

21.7 

If 

-0.5 


-0.04 


II M 

m 

M 


23 

22.2 

H 

-0.5 

-0.46 

-0.04 

±0.06 

II II 

ii 

II 


-34 

22.8 

ii 

-0.6 


-0.10 


Vt. Nt 

Vt. 

Nt. 


25 

23.6 

If 

-0.8 


-0.30 


II I* 

ii 

n 


26 

24.0 

II 

-0.4 


+ 0.10 


II I* 

n 

•i 


27 

24.4 

n 

-0.4 


+ 0.10 


It M 

ll 

M 


28 

24.7 

H 

-0.3 

-0.50 

+ 0.20 

±0.16 

M II 

M 

II 


29 

24.2 

ii 

+ 0.5 


+ 0.76 


Vt Nt 

Vt. 

Nt. 


30 

24.0 

ii 

+ 0.2 


+ 0.46 


H N 

N 

* 


Oct. 

24.2 

ft 

-0.2 


+ 0.06 


II ll 

h 

it 


2 

24.8 

If 

-0.6 


-0.34 


II II 

ii 

H 


3 

26.0 

If 

-1 .2 

-0.26 

-0.94 

±0.51 

II M 

n 

M 


Average for 6 Periods 

— 0.39 Average 

±0.18 

5- Slow, p-Fast, + Gain 

-Loss .Vt-Vertical, Hor.-Horizontal,Temp.-Temperature,Nt."Night,Da.-Day, Dn.-Down. 

Note:-The tabulated results above were obtained by a 

Pocket test conducted 

in the same manner as for Tables 1,2.3, Pag 

es 14,15,16. The Regulation was 

in no 

instance changed during the Trial Run. Page 4 further explains. 


Note: 












20 





















































(TABLE 8} TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE 8 ) 

WATCH(A )N? 

132676 GENEVA WATC 

H.SAME AS TAB 

ES 1,3X4. 

1306 

Timed 

s 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

StPT. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

3 

26.3 

F. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or 

Dn. 

or Da 

4 

26.7 

n 

-0.6 


+ 0.20 


Vt. Nt 

Vr. 

Nt. 


5 

26.2 

«• 

-0.5 


t0.30 


II •• 

ii 

Ii 


6 

21A 

fi 

-0.8 


-0.00 


1* «• 

!• 

li 


7 

26.4 

n 

- i .0 


-0.20 


II l» 

fl 

«| 


8 

25.3 

H 

- 1 .1 

-0.80 

-0.30 

±0.20 

II H 

II 

if 


9 

25.2 

II 

-0.1 


+ 1 .00 


Vt. Nt 

Vt. 

Nt. 


10 

23.8 

ii 

- 1 .4 


-0.30 


<» If 

•• 

h 


II 

22.2 

n 

- 1 .6 


-0.50 


II II 

tt 

II 


12 

21.1 

a 

- 1 .1 


-0.00 


II II 

•• 

• 1 


13 

19.6 

H 

- 1 .3 

- 1.10 

-0.20 

±0.40 

fl H 

fi 

ft 


14 

18.3 

ii 

- 1 .5 


-0.50 


Vt. Nt 

Vt. 

Nt. 


15 

17,2 

ii 

-1.1 


-o. io 


II •• 

ii 

41 


16 

16.4 

ii 

-0.8 


+ 0.20 


Ii •• 

•i 

It 


17 

(6.0 

•i 

-0.4 


+ 0.60 


•1 •» 

it 

II 


Id 

14.8 

n 

- 1 .2 

-1.00 

-0.20 

±0.32 

II It 

•> 

II 


19 

13 .4 

II 

- 1 .4 


-0.00 


Vt. Nt. 

Vt. 

Nt. 


20 

II 6 

n 

- 1 8 


-0.40 


M •• 


M 


2\ 

9 .3 

n 

-2.3 


-0.90 


H M 

H 

ii 


22 

8 .9 

it 

-0.4 


- 1 .00 


II •• 

ft 

•i 


23 

7 .8 

ft 

- U 

-1.40 

-0.30 

±0.52 

II It 

• l 

ii 


-24 

5 .5 

h 

-2.3 


-0.62 


Vt. Nt. 

Vt. 

Nr 


25 

3 .9 

it 

- 1 .6 


+•0.08 


II !• 

«• 

Ik 


26 

2 .7 

ii 

- 1 .2 


-+0.48 


1* •• 

ii 

M 


27 

1 .4 

fi 

- 1 .3 


+0.38 


It •* 

ii 

•» 


26 

0 .6 

6. 

-2.0 

-1 .68 

-0.32 

±0.38 

ti » 

it 

If 


2d 

1 .4 

ii 

-0.3 


+ 0.08 


Vt. Nt. 

Vt. 

Nr. 


30 

2 .4 

Ii 

- 1 .0 


-0.12 


<• •• 

•• 

i» 


Oct. 

3 .5 

l« 

-1 .! 


-0.22 


m •• 

ii 

li 


2 

4 .3 

«l 

-0.8 


+ 0.08 


H »• 

Ii 

ti 


3 

5 .0 

II 

-0.7 

-0.88 

+ 0.18 

±0.14 

ii it 

fl 

«• 


Average for 6 

Periods 

- 1.14 

Average 

•± 0.33 

5- Slow, F* Fast, + Gain 

-Loss, Vt. -Vertical, Hor.- HorizontaLTemp.-Temperature.Nt.'Night.Da.-Day, Dn.'Down. 

Note: 

-The tabulated results above were obtained by a 

Pocket test conducted 

in the 

same manner as for Tables i.2.3. Pag 

es (4.15.16 

. The Regulator 

was 

in no 

instance changed during the Trial Run. 

Page 4 further explai 

ns. 


Note: 












c.l 






















































(TABLE 9J.TIME 5ERVICE RECORDS OFFICE TIME PIECES IN SECONDS AND DECIMALS.(TABl 

£9 ) 

WATCH(C )N9.| 

5984 ENGLISH 19 JEWELS 

-PRIZE W. TESTED ATKEW. 

1306 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Nov. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Dp Vt. 

at Nt. 

10 

2.5 

F. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

1! 

6.8 

n 

+ 4.3 


+ 0.36 


Vr. Nt 

Vr. Nt. 


12 

10,6 

ri 

+ 3.6 


-0.14 


H •• 

i« ii 


13 

13.8 

m 

+ 3.2 


-0.74 


H II 

•• ft 


14 

18.0 

«i 

+ 4.2 


+ 0.26 


li 01 

91 ll 


15 

22.2 

H 

4-4.2 

+3.94 

+ 0.26 

±0.35 

It II 

H ii 


16 

26.8 

M 

+4.6 


+ 0.36 


Vr Hr. 

Vt. Nt. 


17 

31.5 

H 

+ 4.7 


+ 0.46 


|l !> 

ii w 


16 

35.4 

II 

+ 3.9 


-0.34 


10 |0 

ii ii 


19 

39.7 

If 

+4.3 


+ 0.06 


ii •< 

11 tl 


20 

43.4 

n 

+ 3.7 

+4.24 

-0.54 

±0.35 

H ii 

II M 


21 

47.2 

II 

+ 3.5 


-0.16 


Vt. Nt. 

Vt. Nt 


22 

51.3 

If 

+ 4.1 


+ 0.14 


IS II 

61 •( 


23 

55.8 

H 

+ 4.5 


+ 0.54 


ll »t 

ii ii 


24 

59.5 

ii 

+ 3.7 


-0.26 


IS It 

01 ft 


25 

63.2 

II 

+ 3.7 

+3.96 

-0.26 

±0.27 

II SI 

i< i« 


26 

66.6 

ft 

+ 3.6 


-0.10 


Vt. Nt 

Vt. Nt. 


21 

70.3 

II 

+ 3.5 


-0.20 


ii ii 

If II 


25 

73.8 

II 

+ 3.5 


-0.20 


n n 

ii it 


29 

77.6 

II 

+ 3.6 


+ 0.10 


•I H 

ii n 


30 

61 .7 

Cl 

+ 4.1 

+3.70 

+ 0.40 

±0.20 

U P| 

M II 



• 


• 


• 






• 


, • 


• 






• 


• 


« 






• 


• 


• 






• 


• 

— 

• 

+ 





• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 

— 

• 

+ 




Average for 4 Periods 

+ 3.96 Average 

>+ 0.29 

5-Slow, F"Fast; + Gain 

-Loss .W.-Vertical, Hor.-Horizonta!,Temp.-Temperature,Nt.-Night, Da.-Day, Dn.-Down. 

Notes:Testec 

same as heretofore. (Pocket Test) 








90 






























































(TABLE IQJJIhE SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE 10 ) 


WATCH ( D ) 16 SIZE 23 JEWEL (AMER.) SPECIALLY ADJUSTED. 


1908 

Timed 

S 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Nov. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

\0 

1 .2 

F. 


Rate 

Daily Rate 

of Rate 

or 

Hor. 

or 

Dn. 

or Da 

II 

4 .4 

ii 

+ 3.2 


+ 0 ,64 


Vt. 

Nt 

Vr. 

Nr. 


12 

7 .4 

fl 

+ 3.0 


+ 0 .44 


fi 

#• 

«t 

M 


13 

9 .4 

ft 

+ 2.0 


-0.56 


M 

ii 

fi 

ft 


14 

12.1 

« 

+ 2.7 


+ 0.14 


If 

ii 

fi 

fl 


15 

14.0 

II 

+ 1 .9 

+2,56 

-0.66 

±0.49 

fl 

fl 

fl 

ff 


56 

16.0 

II 

+ 2.0 


-1 .20 


Vt. 

Nt 

Vr. 

Nt 


17 

18.4 

01 

+ 2.4 


-0.80 


ii 

ft 

fi 

ff 


ia 

22.8 

If 

+ 4.4 


+ i .20 


ii 

ff 

M 

M 


19 

26.2 

fl 

+ 3.4 


+ 0.20 


ii 

IS 

«l 

fl 


20 

30.0 

01 

+ 3.8 

+ 3,20 

+ 0,60 

±0.80 

ii 

if 

fl 

If 


21 

33.0 

If 

+ 3.6 


+ 0 .32 


Vt. 

Nt 

Vt. 

Nt 


22 

37 A 

tl 

+ 8,6 


+ 0.12 


n 

ii 

ii 

fl 


23 

41.0 

Cl 

+ 3.6 


+ 0.12 


19 

ft 

H 

fl 


24 

43 .a 

fl 

+ 2 8 


-0.6& 


Ii 

M 

fo 

If 


25 

47.4 

H 

+ 3.6 

+3.48 

+ 0.1 2 

±0.27 

H 

ff 

ff 

M 


26 

51 .Z 

If 

+ 3.8 


+ 1 .18 


Vt. 

Nt 

Vt. 

Nt. 


27 

54,7 

19 

+ 3.5 


+ 0 .88 


ii 

ii 

<1 

ii 


28 

55.8 

If 

+ 1 J 


- I .52 


ii 

i$ 

If 

I* 


2S 

58.3 

01 

+ 2.5 


-0.12 


if 

ff 

18 

10 


30 

60.5 

II 

+ 2.2 

+ 2.62 

-0.42 

±0.82 

ft 

ii 

II 

If 



• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 

— 

• 

+ 





• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 

— 

• 

”1- 





S-Slow, F~Fast,4 Gain 


■ Los s .W.-Vertical, Nor.-Horizontal,Temp.Temperature,Nt.~Ni±ht, Pa-Da/, Dn.-Down. 


Note:-The tabulated results above were obtained by a Pocket test conducted 
in the same manner as for Tables 1,2.3, Pages 14,15,16. The Regulation was 
in no instance changed during the Trial Run. Page 4 further explains. 

Note: 



















































































(TABLE IIJJIME SERVICE RECORDS OFF1NETME PIECES IN SECONDS AND DECIMALS.fTABLE II ) 

WATCH (A ) N9.132676 

SWISS 

.16 SIZE 21 JEWELS. 


1908 

Timed 

5 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Dec. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

II 

6.5 

F. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

12 

7.7 

II 

+ 1 .2 


-0.16 


Vt. Nr. 

Mr. Nt. 


13 

9.2 

M 

+ 1.5 


+ 0.14 


ii il 

M M 


14 

10.8 

N 

+ 1.6 


4-0.24 


II M 

II M 


15 

M.8 

If 

1.0 


-0.36 


•1 II 

M M 


16 

13.3 

II 

4- 1.5 

+1.36 

+ 0.14 

±0.21 

II H 

II II 


17 

12.8 

It 

-0.5 


-0.38 


Mr. Nt. 

Mr. Nt 


18 

13.2 

II 

4-0.4 


+ 0.52 


ii ii 

«i II 


19 

13.0 

If 

-0.2 


-0.08 


if it 

n H 


20 

12.8 

ii 

-0.2 


-0.06 

* 

M II 

M II 


21 

12.7 

H 

-0.1 

-0J2 

+ 0.02 

±0.22 

ii ii 

II II 


22 

13.5 

II 

4-0.8 

• 

+ 0.10 


Vr. Nt 

Vr. Nt. 


23 

14.1 

N 

4-0.6 


-0.10 


11 •• 

ii M 


24 

14.9 

•i 

4-0.8 


+ 0.10 


•1 II 

n H 


25 

T5.5 

ii. 

4-0.6 


-0.10 


II II 

n H 


26 

16.2 

H 

4-0.7 

+0.70 

-0.00 

±0.08 

II II 

II ll 


27 

17.4 

ft 

4- 1 .2 


4-0.20 


Vt. Nt. 

Vt. Nt 


28 

18.2 

II 

4-0.8 


-0.20 


ii ii 

II M 


29 

19.2 

If 

+ 1.0 


-0.00 


n H 

H H 


30 

20.0 

If 

+ 0.8 


-0.20 


ii •• 

•i n 


31 

21 2 
• 

If 

4- 1 .2 

+ 1.00 

+ 0.20 

±0.16 

II M 

fl tl 


1909 

2 1* 8 

(f 

+ 0 .6 


+ 0.28 


Vr. Nt. 

Vt. Nt. 


Jan. 

22.3 

II 

4-0.5 


+ 0.18 


ii l« 

fi If 


3 

22.0 

IK 

- 0.3 


-0.62 


H H 

n H 


A 

21.8 

II 

-0.2 


-0.52 


If if 

ii H 


5 

22.8 

If 

+ 1.0 

+ 0.32 

+ 0.68 

±0.46 

H If 

n H 


6 

24.3 

II 

+ 1.5 


4-0.16 


Mr. Nt. 

Mr. Nt 


7 

26.0 

II 

+ 1.7 


+ 0.36 


n M 

it M 


8 

27.2 

1* 

+ 1 .2 


-0.14 


ff ii 

ii H 


9 

28.4 

11 

+ 1 .2 


-0.14 


•• H 

ii M 


10 

29.5 

II 

+ 1.1 

+ 1.34 

-0.24 

±0.21 

ii ii 

m n 


Average for 6 Periods 

+0.76 

Average 

-±0.22 

S-Slow, F* Fast, + Gain 

-Loss, Vx-Vertical, hor.- Horizontal,Temp.-Temperature,Nt.“ Night, Da.-Day, Dn.-Down. 

Note:-The tabulated results above were obtained by a 

Pocket test conducted 

in the same manner as for Tables 1,2,3, Pag 

es 14,15,16. The Regulation was 

in no instance changed during the Trial Run. Page 5 further explains. 

Note 










24 
















































(TABLE I2JJIHE SERVICE RECORDS OFFINET1HE PIECES IN SECONDS AND DECIMALS.fTABLE 1 2 ) 


WATCH( C ) N9.6964 ENGLISH.SAME W, AS TABLES 7&9 


1906 

Timed 

S 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Dec. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up 

Vt. 

at Nt 

II 

12.0 

F. 


Rate 

Daily Rate 

of Rate 

or 

lor. 

or 

Dn. 

or Da 

12 

II .5 

if 

-0.5 


-0.06 


Vt. 

Nr. 

Vt. 

Nt. 


13 

II .0 

n 

-0.5 


-0.06 


ii 

•i 

If 

ff 


14 

II .5 

n 

+ 0.5 


+ 0.94 


H 

ii 

n 

If 


15 

10 .8 

if 

-0.7 


-0.26 


ii 

II 

If 

ti 


16 

9 ,8 

ii 

- 1 .0 

-0.44 

-0.56 

±0.38 

II 

II 

If 

ii 


17 

9 .2 

fi 

-0.6 


-0.04 


Vt. 

Nt 

Vr. 

Nt. 


18 

8 .8 

II 

-0.4 


+ 0.16 


ii 

II 

n 

H , 


19 

7 .8 

n 

- 1.0 


-0.44 


It 

M 

If 

If 


20 

7 .4 

II 

-0.4 


+ 0.16 


ii 

f« 

il 

II 


21 

7 .0 

II 

-0.4 

-0.56 

+ 0.16 

±0.19 

n 

M 

II 

II 


22 

6 .8 

H 

- 0.2 


+ 0.14 


Vr. 

Nt. 

Vt. 

Nt. 


23 

6 .5 

ii 

-0.3 


+ 0.04 


ii 

M 

n 

n 


24 

6 .3 

II 

-0.2 


+ 0.14 


n 

M 

H 

If 


25 

5 .8 

II 

-0.5 


-0.16 


n 

H 

M 

II 


26 

5.3 

i* 

-0.5 

-0.34 

-0.16 

±0.13 

n 

II 

II 

II 


27 

4.6 

n 

-0.7 


-0.32 


Vr. 

Nt 

Vr. 

Nt. 


28 

3 .8 

if 

-0.8 


-0.42 


n 

H 

n 

II 


29 

4 .8 

fi 

+ 1.0 


+ 1.38 


ff 

H 

H 

H 


30 

4 .0 

H 

-0.8 


-0.42 


ii 

n 

If 

M 


31 

3 .4 

Ii 

-0.6 

-0.38 

-0.22 

±0.55 

n 

II 

If 

H 


1309 

3 .4 

It 

-0.0 


+ 0.14 


Vt. 

Nt. 

Vr. 

Nt. 


J AN. 

3 .8 

If 

+ 0.4 


4-0.54 


(f 

h 

II 

II 


3 

3 .6 

ft 

-0.2 


-0.06 


ff 

’» 

n 

!•' 


4 

3 .3 

if 

-0.3 


-0.16 


M 

w 

ii 

II 


5 

2 .7 

n 

-0.6 

-0.14 

-0.46 

±0.27 

ii 

n 

'll 

ll 


6 

2 .3 

n 

-0.4 


-0.02 


Vr. 

Nt 

Vr. 

Nt 


7 

1 .8 

n 

-0.5 


-0.12 


it 

ii 

n 

ii 


d 

1 .5 

If 

i 

o 

• 

05 


+ 0.08 


n 

II 

M 

n 


9 

1 .2 

if 

-0.3 


+ 0.08 


n 

M 

If 

ii 


10 

0.8 

if 

-0.4 

-0.38 

-0.02 

±0.05 

n 

II 

ii 

ii 



Average for 6 Periods —0.37 Average± 0.26 


S*5low, F* Fast, + Gain 


-Loss.VT.-Vertical, tior.- HorizonEalJemp.-Temperature,Nt.~Ni^ht,Pa.-Day t Dn.-Down. 


Note:-The tabulated results above were obtained by a Pocket test conducted 

in the same manner as for Tables 1,2,3, Pa^es 14,15,16, The Regulation was 
in no instance changed during the Trial Run. Pa§e 4 further explains. 

Note: __ 


25 


















































(TABLE 13).TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS. (TABLE 13 ) 

WATCH ( C ) N9. 

6984 ENGLISH. SAME W.AS IN OTHER TABLES. 

1909 

Timed 

s 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Jan. 

Daily 

F 

Rate 

Dai !y 

from Mean 

Variation 

Vertical 

Up vt. 

at Nt. 

26 

1 .6 

5. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or 

Dn. 

or Da 

27 

2.6 

i* 

- 1 .0 


- 0.14 


Vr. Nt. 

Vt. 

Nt. 


28 

3 6 

ii 

- 1 .2 


- 0.34 


ii ii 

if 

<i 


29 

4.4 

ii 

-0.6 


+ 0.26 


M M 

«! 

•• 


30 

5.2 

ii 

-0.6 


4-0.06 


»» « 

ff 

ff 


3/ 

5.9 

it 

-0.7 

-0.86 

+ 0.16 

+ 0.19 

If fl 

ff 

if 


Fes. 

6.7 

ii 

-0.8 


+ 0.18 


Vr. Nr. 

Vt. 

Nt 


2 

7.9 

if 

- ! .2 


-0.22 


a 

ff 

n , 


3 

8.8 

•i 

-0.9 


+ 0.08 


ff ff 

ff 

fi 


4 

9.9 

ft 

- 1 .1 


-0.12 


tf ff 

1* 

H 


5 

)0.8 

H 

-0.9 

-0.98 

+ 0.08 

±0.16 

if •• 

ff 

M 


6 

11.9 

Ii 

- 1 . 1 


-0.90 


Vr. Nt 

Vt. 

Nt. 


7 

II .5 

il 

+ 0.4 


+ 0.60 


ii fi 

m 

ii 


6 

H.9 

ff 

-0.4 


-0.20 


II H 

fi 

if 


9 

12.6 

fi 

-0.7 


-0.50 


If II 

ii 

it 


10 

II .8 

M 

4-0.0 

-0.20 

+ 1 .00 

+ 0.64 

•• it 

M 

ff 


II 

9 .9 

• 1 

+ 1 .9 


+ 1.78 


Vt. Nt. 

Vt. 

Nt. 


12 

9 .2 

II 

+ 0.7 


+ 0.58 


• f M 

fi 

M 


13 

9 .9 

II 

-0.7 


-0.82 


• I !• 

fi 

if 


14 

10 6 

fl 

-0.7 


-0.82 


ff 4 ff 

ii 

« 


15 

II .2 

II 

-0.6 

+ 0.12 

-0.72 

±0.94 

If !• 

if 

M 



• 


t 


• 






• 


• 


• 






• 


t 


• 






. 


# 


• 






• 


9 

- 

• 

4- 





• 


• 


• 






• 


9 


• 






• 


• 


• 






• 


« 


• 






• 


• 

— 

• 

4- 




Average for ^ 

■ Periods 

— 0-48 Average 

‘±0.48 

S-Slow, F'Fast. + Gain 

-Loss ,Vt -Vertical. Hor.'Horizontal.Temp.-Temperature,Nt."Night,Da.-Day,Dn.-Down. 

This 

table completes a 50 Days run 

of this watch without change of 

regulation 

Mean Dai[y Rate for 50 Periods or 

1 0 Days 

-0.46 

See Preceding Pages. 

Mean Variation of Rate for same 

Periods and Days ±0-35 



Note 











26 
















































(TABLE I4J.HHE SERVICE RECORD S OF FINE TIME PIKES IN SECONDS AND DEC!HAL$.(TABLE 14 ) 


WATCH( F. )N9.I2 SIZE 23JEWELS(AMEfi.)FULLY ADJUSTED. 


1903 

Timed 

5 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

\J AN. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Ud Vt. 

at Ft, 

26 

2.9 

$. 


Rate 

Daily Rate 

of Rate 

or 

Hor. 

or 

Dn. 

or Da 

27 

2 .5 


+ 0.4 


+ 1 .08 


Vr. 

Mr. 

Vr. 

Nt. 


23 

3.6 

ii 

- 1.1 


-0.42 


H 

II 

10 

n 


29 

4.6 

si 

- 1 .2 


-0.52 


li 

II 

II IS 


30 

5.5 

M 

[-0.7 


-0.02 


II 

II 

H If 


31 

6.3 

li 

i' 
o 

* 

-0.68 

- 0.12 

±0.43 

1 • 

ii 

II If 


Fee. 

7 .0 

«< 

-0.7 


-0.26 


Vt. 

Hr. 

Vt. 

Nt. 


2 

7.2 

(a 

-0.2 


+ 0.24 


if 

fi 

if if 


3 

7.0 

it 

+ 0.2 


+ 0.64 


M 

19 

it » 


4 

7.7 

|( 

-0.7 


- 0.26 


If 

If 

it H 


5 

8 .5 

If 

-0.8 

-0.44 

-0.36 

±0.35 

H 

II 

91 

u 


6 

9 .5 

16 

- 1 .0 


+ 0.40 


Vt. 

Nt 

Vt. 

Hr, 

- 

7 

10.8 

II 

- I .3 


+ 0.10 


it 

it 

H » 


6 

II .8 

H 

- 1 .0 


+ 0.40 


ll 

ii 

it it 


9 

12.9 

16 

- 1 J 


+ 0 .30 


H 

H 

•1 

If 


10 

15.5 

M 

-2.6 

-1.40 

-1 .20 

±0.68 

it 

ii 

II 

II 


II 

17.4 

n 

-1 .9 


- S .96 


Vr. 

Hz 

Vt. 

Nr. 


12 

16.7 

II 

+ 0.7 


+ 0.64 


it 

i» 

ii 

19 


13 

15.0 

II 

+ 1 .7 


+ 5.64 


i» 

it 

if 

II 


14 

14 .8 

!•** 

+ 0.2 


+ 0.14 


if 

09 

ll 

II 


15 

15.2 

II 

-0.4 

+0.06 

-0.46 

±0.97 

i« 

01 

ft 

II 



• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


0 


• 






• 


0 

— 

• 

+ 





• 


0 


• 






• 


• 


• 






• 


• 


• 






• 


• 


• 






» 


0 

— 

• 

± 




Average for ^ 

^ Periods 

— 0.61 Average 

±0.61 

5- Slow, F* Fast, + Gain 


Loss ,VT.-Vertical, Hor.- horizontal Jemp.-Temperature, Nt.~ Night, Da.-Day, Dn.-Down. 


Yotes: Tested in usual manner in Pocket. 


27 































































































(TABLE 15) JIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE 15) 

WATCH (C )N9.6984 ENGLISH COVENTRY. 

1909 

Timed 

s 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Mar. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

2 

18.0 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

3 

19.8 

• i 

- 1.8 


-0.16 


Vt. Nt. 

Vt. Nt. 


4 

21 .8 

H 

-2.0 


-0.36 


M H 

•1 ll 


5 

23 .1 

•1 

- 1 .3 


+ 0.34 


•i n 

ll M 


6 

24.6 

il 

-1.5 


+ 0.14 


n H 

n I* 


7 

26.2 

i» 

-1.6 

-1.64 

+ 0.04 

±0.21 

ii n 

ii it 


8 

28.0 

ii 

- 1.8 


-0.16 


Vt. Nt. 

Vt. Nt. 


9 

29.4 

H 

- 1 .4 


+ 0.24 


H n 

M M 


10 

31.2 

n 

- 1 .8 


-0.16 


ii ii 

H II 


II 

32.3 

n 

- 1 .1 


+ 0.54 


•i n 

II II 


12 

34.4 

ii 

-2.1 

-1.64 

-0.46 

±0.31 

m n 

II II 


13 

37.0 

u 

-2.6 


-2.22 


Vt. Nt. 

Vt. Nt 


14 

36.2 

II 

+ 0.8 


+ 1 .18 


h ii 

H n 


15 

35 2 
• 

If 

+ 1 .0 


+ 1 .38 


n n 

H n 


16 

35.2 

H 

+ 0.0 


+ 0.38 


ii ii 

n H 


17 

36.3 

II 

-1 .1 

-0-38 

-0.72 

±U8 

•i H 

ii H 


Id 

35.8 

M 

+ 0.5 


+ 0.24 


Vt. Nt 

Vr. Nt. 


19 

34.8 

ii 

+ 1 .0 


+ 0.74 


•i it 

H ll 


20 

35.2 

ii 

-0.4 


-0.66 


H n 

•• fi 


21 

34.9 

H 

+ 0.3 


+ 0.04 


u ii 

Ii n 


22 

35 0 
• 

II 

-0.1 

+ 0.26 

-0.36 

±0.41 

II M 

n ll 


23 

33.8 

II 

+ 1 .2 


+ 1 .24 


Vt. Nt 

Vt. Nt. 


24 

34.4 

If 

CO 

• 

o 

1 


-0.56 


II M 

•i n 


25 

34.8 

If 

-0.4 


-0.36 


II II 

i« H 


26 

35.1 

It 

-0.3 


-0.26 


II M 

(• m 


21 

35.2 

M 

-0.1 

-0.04 

-0.06 

+ 0.50 

II •• 

H H 


26 

35.1 

n 

+ 0.1 


-0.94 


Vt. Nt. 

Vt. Nt. 


29 

35 .4 

ii 

-0.3 


-1 .34 


ii ll 

n n 


30 

34.3 

•i 

+ 1.1 


+ 0.06 


ii n 

•i •• 


31 

31 .8 

ii 

+ 2.5 


+ 1 .46 


II II 

M n 


Apr. 

30.0 

•I 

+ 1 .8 

+ 1.04 

+ 0.76 

±0.91 

II ll 

II N 


Average for 6 Periods 

— 0-40 Averagei 0.59 

S- Slow, F* Fast, + Gain 

-Loss .Vt.-V ertical, Hor.- Horizontal Jemp.-Temperature, Ntr Night, Da.-Day, Dn.-Down. 

Notes: This watch 

was sent to Jeweler for cleaning and oiling at end of this run. 

See 

:he folio wing Page. 










28 





















































(TABLE I6).TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE 16 ) 

WATCH (A )N9. 

132676 

SWISS.GENEVA. 






1909 

Timed 

S 

Dai 1 y 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Mar. 

Daily 

F 

Rate 

Dai 1 y 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

2 

3.0 

S. 


Rate 

Daily Rate 

of Rate 

or hor. 

or Dn. 

or Da 

j 

3.0 

•• 

-0.0 


-0.34 


Vt. 

Nr. 

Vr. Nt 


4 

3.5 

II 

-0.5 


-0.84 


II 

II 

• # ft 


5 

-3.9 

II 

+ 0.6 


+ 0.26 

• 

il 

II 

II #1 


6 

1 .9 

II 

+ 1 .0 


+ 0.66 


II 

If 

«• If 


7 

1 .3 

II 

+ 0.6 

+0.34 

+ 0.26 

±0.47 

99 

It 

#1 II 


8 

0.4 

II 

+ 0.9 


+ 0.58 


Vr. 

Nt 

Vt. Nt. 


9 

0.7 

II 

-0.3 


-0.62 


ii 

• I 

ii n 


10 

1 .2 

m 

-0.5 


-0.82 


ii 

II 

if ii 


II 

0.3 

II 

+ 0.9 


+ 0.58 


M 

M 

ii i< 


12 

0.3 

F. 

+ 0.6 

+ 0.32 

+ 0.28 

±0.58 

II 

If 

if ii 


13 

0 .8 

H 

+ 0.5 


-0.16 


Vr. 

Nt 

Vr. Nt. 


14 

1 .6 

ii 

+ 0.6 


+ 0.14 


M 

II 

il if 


15 

2.8 

H 

+ 1 .2 


+ 0.54 


ll 

il 

ii il 


16 

3.0 

ii 

+ 0.2 


-0.46 

• 

it 

If 

ii il 


17 

3.6 

n 

+ 0.6 

+0.66 

-0.06 

±0.27 

II 

ll 

ii if 


18 

4.8 

ii 

+ 1 .2 


+ 0.90 


Vr. 

Nt. 

Vt. Nt. 


19 

3.6 

it 

-1 .2 


- 1 .50 


il 

il 

m if 


20 

5.2 

ii 

+ 1 .6 


+ 1 .30 


fl 

H 

fl •• 


21 

5.0 

H 

-0.2 


-0.50 


II 

H 

M ll 


ZZ 

5.1 

it 

+ 0.1 

+ 0.30 

-0.20 

±0.88 

if 

Ii 

il if 


23 

4.7 

il 

-0.4 


-0.58 


Vt. 

Nt 

Vt. Nr 


<84 

5.4 

ii 

+ 0.7 


+ 0.52 


ii 

M 

•• «l 


<85 

5.6 

ii 

+ 0.2 


+ 0.02 


it 

if 

ii 


26 

5.2 

ii 

-0.4 


-0.58 


(i 

If 

if n 


27 

6 .0 

il 

+ 0.8 

+0.18 

+ 0.62 

±0.46 

fl 

ll 

•i H 


26 

6.1 

ii 

+ 0.1 


+ 0.52 


Vt. 

Nt. 

Vr. Nt. 


23 

5 .8 

«i 

-0.3 


+ 0.12 


II 

If 

»i il 


30 

4.7 

Ii 

-1 .1 


-0.68 


II 

il 

H ii 


31 

4.2 

ii 

-0.5 


-0.08 


II 

ll 

ii ii 


Apr. 

3.9 

fl 

-0.3 

-0.4 2 

+ 0.12 

±0.30 

II 

ll 

II «• 


Average for 6 

Periods 

+*0.23 Average±0.49 

5- Slow, F*Fast, + Gain 

-Loss.VT-Vertical, Hor.- Horizontal,Temp.-Temperature,NtrNight,Da.-Day, Dn.-Down. 

Note 

See 

Preceding Page. 

Both trials made at 

same time 

. 





29 





























































(TABLE I7J.TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE 17) 


WATCH (G ) N®. 16 SIZE 19 JEWEL.AMERICAN. SPECIALLY ADJUSTED. 


1903 

Apr, 

Timed 

Daily 

S 

F 

Dai 1/ 
Rate 

Mean 
Dai !y 

Variation 
from Mean 

Mean 

Variation 

Bov/ 

Vertical 

Face 
Up Vt. 

Temp, 
at Nt 

2 

2 .8 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or 

Dn. 

or Da 

3 

0.6 

H 

+ 2.2 


+ 0.24 


Hor. N. 

Up 

N. 


4 

) .4 

F. 

+ 2.0 


+ 0.04 


if 

li 

Dm. 

H 


5 

3.2 

ii 

+ 1 .8 


-0.16 


n n 

Up 

II 


6 

5.2 

II 

+ 2.0 


+ 0.04 


Ii 

11 

Dn. 

II 


7 

7 .0 

fi 

+ 1 .8 

+ 1.36 

-0.16 

±0.13 

II 

il 

Up 

fl 


d 

9.1 

II 

+ 2.1 


+ 0.36 


Hor. N. 

Dn. 

N. 


9 

II. 1 

li 

+ 2.0 


+ 0.26 


ii 

it 

Up 

ii 


10 

13.7 

ii 

+ 2.6 


+ 0.06 


if 

it 

Dn. 

n 


II 

14.0 

It 

+ i .1 


-0.64 


il 

ll 

Up 

ii 


12 

15.7 

ii 

+ 0 .9 

+ 1.74 

-0.84 

±0.59 

li 

II 

Dn. 

n 


13 

17.3 

fl 

+ 1 .6 


+ 0.24 


Up N. 

Hor.N. 


14 

18.8 

If 

+ 1 .5 


+ 0 .! 4 


ii 

ft 

01 

ll 


15 

20.7 

II 

+ 1 .9 


+ 0.54 


M 

ll 

II 

«i 


16 

22.3 

fi 

+ 1 .6 

• 

+ 0 ,24 


ii li 

II 

fi 


17 

22.5 

If 

+ 0.2 

+ 1.36 

- 1.16 

±0.46 

H n 

II 

ii 


16 

23.9 

if 

+ 1 .4 


+ 0.10 


Up N. 

Hor. N. 


19 

25.1 

if 

+ I .2 


-0.10 


it 

H 

ii 

ii 


20 

25.6 

ii 

+ 0.5 


-0.00 


li ii 

II 

ii 


21 

27.2 

II 

+ 1 .6 


+ 0.30 


M 

II 

!• 

m 


22 

23.0 

if 

+ 1 .8 

+ 1.30 

+ 0.50 

+ 0.36 

II H 

«» 

n 


23 

31.3 

ii 

+ 2.3 


- S .56 


Hor. N. 

Dn. 

N. 


24 

36.7 

li 

+ 5.4 


+ 1 .54 


If if 

18 

ii 


25 

41.2 

Ii 

+ 4.5 


+ 0.64 


ii •« 

II 

ii 


26 

45.2 

if 

+ 4.0 


+ 0.14 


ii n 

II 

ii 


21 

48.3 

if 

+ 3.1 

+ 3,86 

-0.76 

±0.93 

ii ii 

ll 

li 


28 

43.8 

ii 

+ 1 .5 


-0.18 


Hor. N. 

Dn. 

N. 


29 

52 0 
• 

ii 

+ 2.2 


+ 0.52 


II II 

H 

ii 


30 

52.3 

M 

+ 0.3 


-1 .38 


ii n 

If 

10 


May. 

54.3 

ii 

+ 2.0 


+ 0.32 


n a 

ll 

it 


2 

56.7 

fi 

+ 2 ,4 

+ 1.66 

+ 0.72 

±0.62 

a n 

M 

• 1 



A verage for 6 Periods +3.00 Average! 0.5 1_5 


5-Slow, F- Fast, ± Gain 


-Loss.VT.-VerticaL Hor.- Horizontal,Ten i p.Temperature,Nt.-Nit*ht,Da.-Day, Dn.-Down. 
Note:-This watch was carried 15to!6 hours each day.Temperature while on the 
body 87To68°E*br M Temp.about63.. 0 atnigbi. The time Standard of comparison 
was the W.U. lei. noon-day signals sent from Washington by the Naval Observatory. 


30 











































































(TABLE 16) JIHE SERVICE RECORDS OF FINE TIME PIECES IN SECOND S AND PECIHALS.fTAELF. (©I 


WATCH(G )N° 


16 SIZF - AMERICAN 19 JEWEL. SEE OPPOSITE. PAGE. 


1909 

Mav. 

Timed 

Daily 

S 

F 

Dai 1 / 
Rate 

M can 
Dai 1 y 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hon 

face 
Up vt. 
or Dn. 

Temp. 

at NL 
or Da 

2 

56 ,7 

F. 


3 

58.6 

41 

*-2,1 


-0,18 


Hor. M, 

Dm. N. 


4 

6 \ .6 

«• 

+ 2 .8 


+ 0.52 


ti •• 

II •( 


5 

63 .6 

41 

+ 2 .2 


-0.06 


1® II 

19 <1 


6 

66 .3 

<1 

f 2.5 


+ 0.22 


81 «| 

<1 (1 


7 

68.1 

*4 

i- I .6 

4-2.28 

-0.48 

±0.30 

II (1 

II «• 


a 

70 .4 

44 

h-2.3 


4-0.96 


Hon. N. 

Dm,. N. 


9 

71 .0 

•1 

<-0.6 


-0.74 


«• «• 

• • M 


10 

71 4 

41 

+ 0 .4 


-0.94 


<• * U 

H «i 


li 

73 1 

41 

+ 1 .7 


+ 0.36 


4< 41 

<1 it 



74 .6 

It 

4- 1 .7 

+ 1.34 

+ 0.36 

+ 067 

<# «• 

II It 


13 

77.2 

9t 

4-2 ,4 


+ 0.28 


Hor. H. 

Up N. 


14 

79 .6 

It 

+ 2 6 


+ 0.48 


« »i 

Dn. •' 


15 

81 4 

<1 

4 1 6 


-0.52 


ii •• 

Up u 


16 

83.3 

44 

+ i .9 


-0.22 


•• •• 

Os. •• 


17 

85.4 

41 

4-2.1 

+ 2.12 

- 0 ,02 

1 0.30 

19 90 

Up - 


18 

07 .4 

44 

4-2.0 


-0.36 


Hor. N. 

Dn. " 


19 

69 .8 

4« 

<-2.4 


+ 0.04 


«• •» 

Up - 


20 

92 3 

44 

+ 2.5 


+ 0.14 


IS •« 

Dn. ° 


21 

94 7 

*9 

* 2 .4 


+ 0 .04 


<1 •• 

Up •' 


22 

97 2 

44 

+ 2 .5 

f 236 

+ 0.14 

tO.14 

•f II 

Dn. •• 



t 


- 


- 








- 


- 






% 


» 


— 






» 


- 


— 





Mean 4, Periods. 

4-2.02 

- 

+ 0.35 





* 


- 


- 






• 


- 


- 






• 


- 


- 










- 






, 


• 

— 

— 

+ 





Average for 1 0 Periods + 2,00 Avera£je±0. 45 


5- Slow, F* Fast, Hr Gain 


-Loss ,Vt. Vertical. Hor . -honzonta).Temp.Temperature.Nt.~ Ni ^nt,Da .-Pay, On. - Down. 
Notes: Watches G and A were tested together and at same time.See the preceding 
and two following tables and observe change of positions 


31 






















































































































(TABLE I9J.TI ME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE 19 ) 


WATCH ( A ) N?.132676 SWISS. 


1909 

Timed 

S 

Dai 1/ 

M ean 

Variation 

Mean 

Bow 

Face 

Temp. 

Apr. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

2 

3.4 

F. 


Rate 

Daily Rate 

of Rate 

or Hor 

or 

Dn. 

or Da 

3 

4.7 

H 

+ 1.3 


+ 1 .42 


Hor.N. 

Up 

N. 


4 

4.2 

H 

-0.5 


-0.38 


ii ii 

Dn. 



5 

3.6 

ff 

-0.6 


-0.46 


II M 

Up 

II 


6 

3.1 

If 

-0.5 


-0.33 


M H 

Dn. 

«• 


7 

2 .8 

ii 

-0.3 

-0.12 

-0.18 

±0.57 

19 II 

Up 

II 


8 

2 .0 

u 

-0.0 


-0.00 


Hor. N. 

Dw. 

il 


9 

2.6 

II 

+ 0.6 


+ 1 .40 


II M 

Up 

il 


10 

1 .2 

II 

- 1 A 


-0.60 


n a 

Dn. 

II 


II 

0,0 

II 

-1 .2 


-0.40 


II II 

Up 

II 


12 

1 .2 

s. 

- 1 .2 

-0.80 

-0.40 

+ 0.56 

II II 

Dn. 

II 


13 

2.4 

II 

- 1 .2 


-0.30 


Up N. 

Vt. 

N. 


14 

3 .2 

M 

-o.a 


+■ 0.02 


•i •» 

ii 

•9 


15 

4.3 

II 

-1 .1 


-0.28 


i* 

ii 

II 


16 

5.1 

II 

-0.0 


+ 0.02 


ii ii 

ii 

II 


17 

5.3 

II 

-0.2 

-0.82 

+ 0.62 

±0.26 

il if 

If 

II 


18 

6 .5 

ii 

-1 .2 


-0.16 


Up N. 

Vr. 

N. 


19 

a.o 

II 

- ! .5 


-0.46 


m ii 

ii 

M 


20 

9.3 

II 

-1 .3 


-0.26 


ii it 

•I 

• 9 


21 

9.0 

II 

-0.5 


+ 0.54 


i» il 

II 

II 


22 

10.5 

II 

-0.7 

-1.04 

+ 0.34 

±0.35 

M H 

If 

II 


23 

II .7 

M 

- J .2 


-0.14 


Hor. N. 

Dn. 

N. 


24 

10.2 

II 

+ 1 .5 


+ 1.56 


ii ii 

•• 

n 


25 

10.0 

M 

+ 0.2 


+ 0.26 


il if 

il 

M 


26 

10.0 

M 

-0.0 


+ 0.06 


M ii 

91 

M 


27 

10.8 

l> 

-0.8 

-0.06 

-0.74 

±0.35 

II ii 

H 

•1 


26 

10.5 

If 

+ 0.3 


+ 0.54 


Hor. N. 

Dn. 

N. 


23 

II .0 

II 

-0.5 


-0.26 


il il 

• I 

M 


30 

II .5 

II 

-0.5 


-0.26 


II II 

II 

II 


May. 

12.0 

II 

-0.5 


-0.26 


il H 

II 

II 


2 

12.0 

II 

-0.0 

-0.24 

+ 0.24 

±0.31 

ii ii 

II 

II 



Average for 6 Periods — 0-5 I Average± 0.40 


S- Slow, F* Fast, + Gain 


- Loss.V t-V ertical. Hor.-t1orizontal.Temp.-Temperature,Nt.~ Night, Da-Day, Dn.-Down. 

Note:-This watch was carried 15to 16 hours each day.Temperature while on the 
body 87 o to88°Fahr.Jemp.about .60 c at ni^ht. The time Standard of comparison 
was the W.U.Tel. noon-day signals sent from Washington by the Naval Observatory. 


32 





















































(TABLE20) .TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS. (TABLE 20) 

WATCH (A )N9. 

32676 GENEVA SWISS. 





1909 

Timed 

S 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Ma r. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

2 

12 .0 

5. 


Rate 

Daily Rate 

of Rate 

or hor. 

or Dn. 

or Da 

3 

1 2.2 

fl 

-0.2 


- 0.0 z 


Mor. N. 

Dm. N. 


4 

\2 .2 

11 

-0.0 


+ 0.18 


11 fl 

fl if 


5 

12 .0 

91 

+ 0.2 


+ 0.38 


a a 

H H 


6 

12 .3 

11 

-0.3 


-0.12 


n n 

H H 


7 

12 .9 

If 

-0.6 

-0.18 

-0.42 

±0.22 

a n 

H il 


6 

13 .3 

fl 

-0.4 


+ 0.54 


Hor. N. 

Dn. N. 


9 

13.9 

If 

-0.6 


+ 0.34 


n a 

n H 


10 

14.8 

If 

-0.9 


+ 0.04 


if ff 

H n 


II 

17.0 

11 

-2.2 


- 1 .26 


fl ft 

ff M 


12 

17 .6 

11 

-0.6 

-0.94 

+ 0.34 

±0.50 

a >1 

•• ii 


13 

18.1 

11 

-0.5 


+ 0.24 


Hor. N. 

Up N. 


14 

18 .7 

11 

-0.6 


+ 0.14 


1i if 

Dn. " 


15 

20.0 

a 

- 1 .3 


-0.56 


H ii 

Up " 


16 

2 0.7 

11 

-0.7 


+ 0.04 


11 11 

Dn. " 


17 

21 .3 

11 

-0.6 

-0.74 

+ 0.14 

±0.22 

ff M 

Up " 


18 

21 .6 

11 

-0.3 


+ 1 .16 


Hor. N. 

Dn. N. 


19 

23 .8 

11 

-2.2 


-0.74 


M fl 

Up ** 


20 

24.8 

It 

-1 .0 


+ 0.46 


If If 

Dn. " 


21 

27.0 

11 

-2.2 


-0.74 


If fl 

Up - 


22 

28.6 

•I 

-1 .6 

-1.46 

-0.14 

±0.65 

11 11 

Dn. " 



• 


• 


• 






• 


• 


• 






• 


• 


• 






• 


• 


• 





Mea 

g 4 Periods 

-0.83 

• 

±0.40 





• 


• 


• 






• 


• 


• 






• 


— 


« 






• 


• 


• 






• 


0 

— 

• 

+ 




Average for 10 Periods 

— 0.64 Average^ 0.40 

S-Slow, F*Fast,+ Gain 

-Loss.Vx-Vertical. Hor.-Horizontal,Temp.-Temperature,Nt "Night, Da.-Day, Dn.'Down. 

Notss:Watches A & G were tested together See the 3 preceding tablesjand chang- 

es of position. 




88 



























































(TABLE2IIJIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMAL$.(TABLE2I ) 


WATCH(A )N?.I32676 HIGHEST GRADE AND HIGHEST PRIZE SWISS. 


1909 

Timed 

S 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

June 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

3 

0.3 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

4 

0 .5 

m 

-0 .2 


-0.22 


Vert. 

Vert. 


5 

0 .3 

F. 

+ 0.8 


+ 0 .76 


M 

«• 


6 

0.1 

a 

-0 .2 


-0.22 


If 

if 


7 

0 .2 

n 

+ 0.1 


+ 0.08 


It 

It 


a 

0.2 

S. 

-0.4 

+ 0.02 

-0.42 

±0.34 

a 

II 


9 

0 .2 

F 

+ 0 .4 


+ 0.20 


Vert. 

Vert. 


10 

0 .4 

~r~ ■ 

it 

+ 0.2 


-0.00 


ii 

n 


II 

0 .7 

m 

+ 0.3 


+ 0.10 


ii 

«i 


12 

1 .0 

ti 

+ 0.3 


+ 0.10 


«• 

ii 


13 

0 .8 

a 

-0.2 

+ 0.20 

- 0.40 

±0.16 

(l 

ii 


14 

0 .6 

ii 

-0.2 


-0.22 


Vert. 

Vert. 


15 

0 .5 

ii 

-0.1 


-0.12 


II 

ii 


16 

0 .6 

u 

+ 0.3 


+ 0.26 


il 

H 


17 

1 .0 

ti 

+ 0.2 


+ 0.i8 


ii 

il 


18 

0 .9 

tt 

-O.i 

+0.02 

-0.12 

±0.18 

H 

fl 


19 

1 .2 

II 

+ 0.3 


+ 0.22 


Vert. 

Vert. 


20 

l .1 

II 

-0.1 


-o.sa 


ii 

ii 


21 

1 .0 

M 

-0.1 


-0.18 


ii 

ii 


22 

1 .7 

H 

+ 0 .7 


+ 0.62 


ii 

ii 


23 

1 .3 

ti 

-0.4 

+ 0.06 

- 0.48 

±0.34 

19 

li 


24- 

o .a 

it 

-0.5 


- 0.26 


Vert. 

Vert. 


25 

i .i 

it 

+ 0.3 


+ 0.54 


ii 

n 


26 

1 .0 

ft 

-0.1 


+ 0.14 


li 

fi 


27 

0 .6 

H 

-0.4 


-0.16 


If 

it 


25 

0 .1 

ii 

-0.5 

-0.24 

-0,26 

±0.27 

41 

ii 


23 

0 .5 

S. 

-0.6 


-0.26 


Vert. 

Vert. 


30 

1 .2 

ii 

-0.7 


-0.36 


ii 

ii 


July. 

1 .0 

ii 

+ 0.2 


+ 0,54 


ti 

il 


2 

1 .3 

i« 

-0.3 


+ 0.04 


ii 

ii 


3 

1 .6 

ti 

-0.3 

-0.34 

+ 0.04 

±0.25 

ii 

il 


Average for 6 Periods 

— 0.04 Average 

±0.26 

5- Slow, F Fast, + Gain 


i-055 .Vt.-Verticai, Hor.4lorizontalJemp.Tsmperalure,Nt.~Night,Da.-Day, Dn -Down. 


Note:-I"his watch was carried 15to 16 hours each day.Temperature while on the 
body 87Ho83TahrJemp.about65 .° a t flight, i he time Standard of comparison 
was the W.U.Tel.nocn-day siqnals sent from Washington by the Naval Observatory. 
Geneva Observatory Record 257.8 Points. See following Page. 


34 























































































(TABLE22).TIME SERVICE RECORDS OFFINETIME PIECES IN SECONDS AND DECIMAL5.(TABLE 22 ) 

WATCH (A )N?.I32676 THE SAME WATCH AS 

PRECEDING PAGE. 

1309 

Timed 

3 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

July 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

3 

1 .6 

S. 


Rate 

Daily Rate 

of Rate 

or hor. 

or Dn. 

or Da 

4 

1 .4 

II 

+ 0 ,2 


-0.12 


Vert. 

Vert. 


5 

1 .3 

It 

+ 0.1 


- 0 .22 


ii 

• • 


6 

1 .0 

(1 

+ 0.3 


-0.0 2 


ll 

ii 


7 

0.5 

II 

+ 0.5 


+ 0.16 


ll 

if 


a 

0.0 

II 

+ 0.5 

+ 0.32 

+ 0.16 

±0.14 

If 

M 


s 

0 .2 

19 

-0.2 


-0.16 


Vert. 

Vert. 


10 

0.1 

F. 

+ 0.3 


+ 0.34 


ii 

If 


II 

0.0 

•i 

-0.1 


-0.06 


<1 

if 


IZ 

0.2 

S. 

-0.2 


-0.16 


Hor. N. 

Dn. N. 


13 

0 .2 

ii 

-0.0 

-0.04 

+ 0.04 

+ 0.15 

if 

if 


14 

0.6 

•• 

-0.6 


-0.56 


Vert. 

Vert. 


15 

0.9 

ii 

-0.1 


-0.06 


ii 

If 


16 

0.8 

it 

+ 0.1 


+ 0.14 


If 

if 


17 

0.7 

u 

+ 0.1 


+ 0.14 


H 

If 


IQ 

0.4 

ii 

+ 0.3 

-0.04 

+ 0.34 

±0.25 

Hor.N. 

Dn. N. 


19 

0.3 

91 

*0.1 


-0.04 


Vert. 

Vert. 


20 

0.6 

II 

-0.3 


-0.44 


ii 

ii 


21 

0 .2 

it 

+ 0.4 


+ 0.26 


ii 

ii 


22 

0 .0 

II 

+ 0.2 


+ 0.06 


ii 

if 


23 

0.3 

F. 

+ 0.3 

+ 0.14 

+ 0.16 

+ 0.19 

if 

if 


24 

0.0 

<» 

-0.3 


-0.16 


Vert. 

Vert. 


25 

0 .2 

S. 

-0.2 


-0.06 


ii 

a 


26 

0 .4 

i« 

-0.2 


-0.06 


Hor. N. 

Dn. N. 


27 

0.1 

if 

+ 0.3 


+ 0.44 


Vert. 

Vert. 


26 

0.4 

ii 

-0.3 

-0.14 

-0.16 

±0.16 

ii 

U 


23 

1 .0 

«i 

-0.6 


-0.72 


Vert. 

Vert. 


30 

0 .7 

•i 

+ 0.3 


+ 0.18 


II 

if 


31 

0 .4 

ii 

+ 0.3 


+ 0.18 


II 

if 


Aug. 

0.1 

i» 

+ 0.3 


+ 0. 18 


II 

if 


2 

0 .2 

F. 

+ 0.3 

+ 0.12 

+ 0.18 

±0.29 

ii 

it 


Average for f 

? Periods 

+ 0.06 Average 

>±0.20 

5-$Low,FTast, + Gain 

-Los s. Vt. -Vertical, Nor.- Horizontal,Temp.-Temperature, Nt.' Night, Da.- Day, Dn.-Down 

Notes: This watch shows in the 60 days run&most remarkable record for precision. 

A perfect regulation and an exceptional adjustment. See Preceding Page. 


Mean Daily Rate for \Z Periods or 60 Days + 0.0031 Sec Preceding Pages. 

Mean Variation of Rate for same Periods and Days + 0.23 


85 


































































(TABLE23].TIME SERVICE RECORDS CF FINE TIKE PIECES Ifi SECONDS AMD DECIMALS.fTABLE 2 3) 


WATCH ( H ) N4I6 SIZE 23 JEWELS (AMERICAN) SPECIALLY ADJUSTED, 


1905 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

July 

Daily 

F 

Rate 

Dai 1 y 

from Moan 

Variation 

Vertical 

Up Vt. 

at Nt 

9 

10.4 

F. 


Rate 

Daily Rate 

of Rate 

or Mor. 

or 

Dn. 

O 

E 

10 

11.3 

it 

+ 0.9 


+ 0.62 


Vt. Nt. 

Vt. 

Nt 


I) 

II.0 

If 

-0.3 


-0.58 


ii ii 

•1 

N 


12 

10.5 

If 

-0.5 


- 0.78 


•i li 

II 

if 


13 

10.8 

M 

+ 0.3 


+ 0.02 


M II 

li 

4 II 


J4 

11.6 

if 

+ 1 .0 

+ 0.28 

+ 0.72 

+ 0.54 

It 1# 

ll 

II 


15 

12.7 

u 

+ 0.9 


+ 0.02 


Vr. Nt 

Vt. Nt. 


16 

13.9 

ii 

+ 1 .2 


+ 0.32 


m ii 

81 

H 


17 

15.0 

ii 

+ u 


+ 0.22 


ii ii 

II 

II 


16 

15.7 

ii 

+ 0.7 


-0.18 


•i t* 

II 

II 


19 

16.2 

ii 

+ 0.5 

+ 0.68 

-0.38 

+ 0.22 

II 04 

II 

18 


20 

17.7 

M 

+ i .5 


+ 0.18 


Vt. Nt 

Vt. 

Nr. 


21 

18.7 

II 

+ ! .0 


-0.32 


M II 

«0 

it 


22 

20.1 

l« 

+ 1 .4 


+ 0.0© 


ll II 

if 

a 


23 

20.3 

II 

+ 0.8 


-0.52 


II II 

if 

91 


24 

22 6 

II 

+ 1 .9 

+ 8.32 

+ 0.58 

±0.34 

01 II 

Ci 

II 


25 

24 0 
• 

II 

+ 1.2 


-0.20 


Vt. Nt. 

Vt. 

Nt 


26 

25.4 

M 

+ f .4 


- 0.00 


ii ii 

0* 

ii 


27 

27.1 

II 

+ 1.7 


+ 0.30 


II M 

II 

ii 


26 

28 a 

II 

+ 1 .7 


+ 0.30 


II II 

• 1 

•i 


2$ 

29.8 

la 

+ i .0 

+ 1.40 

-0.40 

±0.24 

80 II 

• 0 

ii 


30 

30.6 

la 

+ 0.6 


- 0.40 


Vt. Nt 

Vt. 

Nt 


31 

31.6 

81 

+ i .0 


-0.20 


M II * 

ti 

99 


Aug. 

32.6 

II 

+ 1.2 


-0.00 


*|J M 

if 

ll 


2 

34.0 

18 

+ J .2 


-0.00 


81 M 

li 

81 


3 

35.8 

II 

+ 1 .8 

+ 1.20 

+ 0.60 

± 0.24 

II (1 

li 

88 


4 

38.0 

II 

+ 2.2 


+ 0.06 


Vt. Nt. 

Vt. 

Nt 


5 

40.7 

II 

+ 2.7 


+ 0.56 


ii •• 

ii 

81 


6 

43.2 

If 

+ 2.5 


+ 0.36 


00 ll 

ii 

ll 


7 

44.1 

If 

+ 0.9 


- 1 .24 


II II 

• 8 

ll 


8 

46.5 

tl 

+ 2 .4 

+ 2.14 

+ 0.26 

+ 0.50 

II 1* 

II 

II 



Average for 6 Periods 4- 1 . 20 Averaged 0.35 


S* Slow F*Past, + Gain 


-Loss .Vx-Vertical, flor.- Horizontal Jemp.-Tcmperature, Nt.“ Night, Par Day, Dn.-Down. 


Notc:-This watch was carried 15to!5 hours each day.Tempenedure while on the 
body 87To88Tahr.Jemp.about65°at nicjht. The time Standard of comparison 
Jwas the W.U.Tel .noon-day signals sent from Washington by the Hava) Observatory 

This watch was tested at same time with A. See Following Fage. 


30 



























































(TABLE24J.TIME SERVICE RECORDS Of FINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE 24 

WATCH (A )N?. 

32676 GENEVA. 

1909 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

July. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

a 

«r 

0.2 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or 

Dn. 

or Da 

10 

O.l 

F 

+ 0.3 


+ 0.42 


Vr. Nr. 

Vr. 

Nr. 


II 

0.0 

it 

-0.1 


+ 0.02 


ft 99 

•• 

n 


12 

0.2 

s. 

-0.2 


-0.06 


H 99 

14 

H 


13 

0.2 

t* 

-0.0 


+ 0.12 


99 99 

99 

99 


14 

0.8 

94 

-0.61 

-0.12 

-0.46 

±0.22 

91 99 

44 

00 


15 

0.9 

ft 

-0.1 


-0.20 


Vt. Nt. 

Vt. 

Nr. 


16 

0.8 

99 

+ 0.1 


-0.00 


it •* 

ii 

il 


17 

0.7 

• # 

+ 0.1 


-0.00 


•• 09 

H 

II 


18 

0.4 

ft 

+ 0.3 


+ 0.20 


4 1 II 

99 

Ii 


19 

0.3 

99 

+ 0.1 

+ 0.10 

+ 0.00 

±o.oa 

II II 

49 

11 


20 

0.6 

94 

-0.3 


-0.36 


Vt. Ntj 

Mr. 

Nt. 


21 

0.2 

H 

+ 0.4 


+ 0.34 


II 94 

99 

ii 


22 

0.0 

49 

+ 0.2 


+ 0.14 


II II 

II 

ii 


23 

0.3 

F. 

+ 0.3 


+ 0.24 


M II 

» 

ii 


24 

0 .0 

•• 

-0.3 

+ 0.06 

-0.36 

±0.29 

II II 

II 

ii 


25 

0 .2 

S. 

-0.2 


-0.00 


Vt. Nt. 

Vr. 

Nt. 


26 

0.4 

99 

-0.2 


-0.00 


09 II 

M 

ii 


27 

0.1 

99 

+ 0.3 


+ 0.50 


»• it 

II 

II 


28 

0.4 

94 

-0.3 


-0.10 


II f! 

II 

il 


29 

1 .0 

99 

-0.6 

-0.20 

-0.40 

±0.20 

II II 

M 

II 


30 

0.7 

99 

+ 0.3 


+ 0.26 


Vt. Nt 

Vt. 

Nr. 


31 

0.4 

49 

+ 0.3 


+ 0.26 


19 II 

ii 

90 


Aug. 

0 .2 

99 

+ 0.2 


+ 0.16 


II II 

ii 

It 


2 

0 .2 

F. 

+ 0.4 


+ 0.36 


II II 

99 

II 


3 

0.8 

5. 

- 1 .0 

+ 0.04 

- 1 .04 

±0.42 

II (1 

II 

II 


4 

0 .6 

99 

+ 0.2 


+ 0.44 


Vr. Nt. 

Vt. Nt. 


5 

1 .2 

99 

-0.6 


-0.36 


il H 

ii 

09 


6 

0 .7 

49 

+ 0.5 


+ 0.74 


!• II 

ii 

•1 


7 

1 .7 

99 

-1 .0 


-0.76 


•l n 

M 

M 


6 

2.0 

49 

-0.3 

-0.24 

-0.06 

±0.47 

II II 

•1 

I* 


Average for € 

Periods 

— 0.06 Average 

±0.28 

S-Slow, F'Fast. + Oain 

-Loss .Vr-Vertical, Hor.-Horizontal Jemp.Temperaiure,Nt.-Night,Da.-Day, Drt.-Down. 


Note:-This watch was carried !5to!6 hours each day.Temperature while on the 
body 87°to88*fahr. Jemp.about 6.5° at night. The time Standard of comparison 
was the W.U.Tel. noon-day signals sent from Washington by the Naval Observatory. 
This was tested same time as H. Pendant up at ni^ht. 


37 

















































(TABLE/?5).TIME SERVICE REC0RD5 OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE 2 5) 

WATCH (A )N9. 

32676 GENEVA WATCH. 

1303 

rimed 

S 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp, 

Oct. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

14 

7.8 

F. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

15 

0 .Z 

if 

+ 0.4 


+ 0,62 


Vert. 

Vert. 


16 

8 .0 

if 

-0.2 


+ 0.02 


00 

#0 


17 

7 .8 

0 i 

-0.2 


+ 0.02 


00 

10 


id 

7 .4 

•0 

-0.4 


-0.18 


ii 

00 


id 

6 .7 

00 

-0.7 

-0.22 

-0.48 

+ 0.26 

00 

If 


20 

6 .0 

if 

-0.7 


-0.46 


Vert. 

Vert. 


Zi 

5 .7 

00 

-0.3 


-0.06 


C0 

#0 


ZZ 

5 .8 

00 

+ 0.1 


+ 0.34 


00 

00 


Z3 

5,6 

n 

-0.2 


+ 0,04 


•1 

•• 


54 

5.5 

» 

-0.1 

- 0.24 

+ 0. 14 

+ 0.21 

II 

If 


Z5 

5.5 

It 

-0.0 


-0.02 


Vert. 

Vert. 


Z6 

5.9 

10 

+ 0.4 


+ 0.38 


00 

ii 


27 

5.5 

It 

-0.4 


-0.42 


n 

10 


Z6 

5.5 

10 

-0.0 


-0.02 


If 

ii 


Z9 

5.6 

It 

+ 0.1 

+ 0* 02 

+ 0.06 

+ 0.18 

Hori. 

Up. 


30 

5 .8 

n 

+ 0.2 


+ 0.00 


Vert. 

Vert. 


31 

6 .3 

ii 

+•0.5 


+ 0.36 


fa 

00 


Nov. 

6 .6 

i« 

+ 0.3 


+ 0.18 


n 

n 


Z 

6 .3 

n 

-0.3 


-0.42 


n 

•i 


3 

6 .2 

00 

-0.1 

+ 0.12 

-0.22 

+ 0.26 

•0 

n 


4 

6 .8 

0 f 

+ 0.6 


+ 0.28 


Vert. 

Vert. 


5 

6 .8 

01 

-0.0 


-0.32 



M 


6 

6 .8 

01 

-0.0 


-0.32 


•i 

a# 


7 

7 .3 

01 

+ 0.5 


+ 0.18 


00 

ft 


6 

7 .8 

fl 

+ 0.5 

+ 0.32 

+ 0.18 

+ 0.26 

ii 

ii 


9 

7 .8 

01 

-0.0 


-0.38 


Vert. 

Vert. 


10 

8 .2 

01 

+ 0.4 


+ 0.02 


M 

00 


II 

8 .3 

01 

+ 0.1 


-0.26 


If 

» 


IZ 

S .1 

n 

+•0.6 


+ 0.42 


It 

00 


13 

9 .7 

00 

+ 0.6 

+ 0.38 

+ 0.22 

+ 0.26 

n 

00 


Average for 6 Periods 

+ 0.06 Average 

•±0.24 

S'Slow, F-Fast.-f Gain 

-Loss .Vt. -Vertical. Hor.- Horizontal .Temp-Temperature, Nt.- Night, Da.-Day, Dn.-Down. 

Note:-The tabulated results above were obtained by a 

Pocket test conducted 

in the same manner as for Tables 5.2.3, Pag 

es 14.15,16. The Regulator 

i was 

In no instance changed during the Trial Run. 

Page 4 further explains. 


Note: 










3S 



















































(TABLE 26) .TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE 26 ) 

WATCH ( I )N°.28428 GENEVA SWISS. 

1909 

Timed 

S 

Oai 1 y 

M ean 

Variation 

Mean 

Bow 

Face 

Temp. 

Oct. 

Dai ly 

F 

Rate 

Dai 1 y 

from Mean 

Variation 

Vertical 

Up vt. 

at Nt. 

14 

4.2 

5. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

15 

4.5 

M 

-0.3 


-0.06 


Vert 

Vert. 


16 

4.7 

M 

-0.2 


+ 0.04 


•• 

if 


17 

4.6 

•1 

-0.1 


+ 0.14 


if 

i« 


18 

5.1 

If 

-0.3 


- 0.06 


«• 

fl 


19 

5 .4 

•1 

-0.3 

-0.24 

-0.06 

+ 0.07 

it 

ii 


20 

4.9 

II 

+ 0.5 


+ 0.64 


Vert. 

Vert. 


Zl 

5.6 

If 

-0.7 


-0.56 


It 

ii 


Z2 

5.6 

If 

-0.0 


+ 0.14 


it 

ff 


23 

6.0 

•I 

-0.4 


-0.26 


It 

fl 


24 

6.1 

fl 

-0.1 

-0.14 

+ 0.04 

+ 0.33 

It 

If 


25 

6.3 

it 

- 0.2 


-0.02 


Vert. 

Vert. 


26 

6.5 

II 

-0.2 


-0.02 


ft 

<l 


27 

6.9 

ft 

-0.4 


-0.22 


H 

ft 


28 

7.1 

If 

-0.2 


-0.02 


it 

It 


23 

7.0 

fl 

+ 0.1 

-0.18 

+ 0.28 

±0.11 

Hor. 

Down 


30 

6 .9 

if 

+ 0.1 


-0.30 


Vert. 

Vert. 


31 

6.5 

If 

+ 0.4 


-0.00 


M 

M 


Nov. 

6.2 

if 

+ 0.3 


-0.10 


II 

II 


2 

5.5 

it 

+ 0.7 


+ 0.30 


M 

II 


3 

5.0 

II 

+ 0.5 

+ 0.40 

+ 0.10 

±0.16 

It 

II 


4 

4.2 

ll 

+ 0.8 


+ 0.34 


Vert. 

Vert. 


5 

3.4 

li 

+ 0.8 


+ 0.34 


if 

n 


6 

3.0 

M 

+ 0.4 


-0.06 


u 

ii 


7 

2.8 

W 

+ 0.2 


-0.26 


ft 

ii 


8 

2.7 

II 

+ 0.1 

+ 0.46 

-0.36 

±0.27 

it 

H 


9 

2 .4 

M 

+ 0.3 


-0.16 


Vert. 

Vert. 


10 

2 .0 

« 

+ 0.4 


-0.06 


fl 

Ii 


II 

1 .4 

If 

+ 0.6 


+ 0.14 


Hor. 

Up 


12 

1 .0 

fl 

+ 0.4 


-0.06 


it 

it 


13 

0.4 

II 

+ 0.6 

+ 0.46 

+ 0.14 

+ 0.11 

Vert. 

Vert. 


Average for 6 

Periods 

+ 0.13 

Average± 0.17 

5-Slow, F'Fast, + Gain 

-Loss.Vr-Vertical. f1or.-HorizontalJemp.-Temperature,Nt.“Ni^ht,Da.-Day,On.-Down. 


Note.-Th is watch was carried 15tol6 hours each day.Temperature while on the j 
body 87°to88 6 Fahr.,Temp.about60*at night. The time Standard of comparison ! 
was the W.U.Tel. noon-day signals sent from Washington by the Naval Observatory. 


39 




















































(TABLf27J.ilME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE 27 ) 

WATCH ( A ) N9. 132676 WITH GENEVA OBSERVATORY RECORD. 

1903 

Nov. 

Timed 

Daily 

S 

F 

Dai ly 
Rate 

M ea n 
Dai !y 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up Vt. 
or Dn. 

Temp 
at Nt. 
or Da 

13 

9 .7 

F. 


14 

10.0 

ii 

+ 0.3 


-0.02 


Vert 

Vert. 


(5 

10.3 

if 

+ 0^3 


-0.02 


M 

• i 


16 

II .0 

ii 

+ 0.7 


+ 0.36 


It 

ff 


17 

If .0 

if 

-0.0 


- 0.32 


II 

ff 


58 

If.3 

ii 

+ 0.3 

+ 0.32 

-0.02 

tO. (5 

fl 

ff 


19 

1! .8 

ii 

+ 0.5 


+ 0.20 


Vert. 

Vert. 


20 

12.0 

tt 

+ 0.2 


-0.1 0 


m 

M 


21 

12.3 

it 

+ 0.3 


-0.00 


ff 

ff 


ZZ 

12.6 

n 

+ 0.5 


+ 0.20 


ff 

ff 


23 

12.6 

n 

-0.0 

+ 0.30 

-0.30 

1 0.16 

ff 

ff 


24 

13.3 

19 

+ 0.5 


+ 0.12 


Vert. 

Vert. 


25 

(3.7 

19 

+ 0.4 


+ 0.02 


If 

M 


26 

14.0 

II 

+ 0.3 


-0.08 


if 

ff 


27 

(4.5 

V 

+ 0.5 


+ 0.12 


ft 

ff 


2d 

(4.7 

II 

+ 0.2 

+ 0.38 

-0.58 

±0.10 

it 

fl 


2 9 

(4.9 

fl 

+ 0.2 


-0.5Q 


Vert. 

Vert. 


30 

(5.6 

•f 

+ 0.7 


+ 0.40 


•f 

ii 


Dec. 

(5.6 

19 

-0.0 


-0.30 


ff 

if 


2 

I5.Q 

fl 

+ 0.2 


-0.10 


ff 

ff 


3 

16.2 

M 

+ 0 .4 

+ 0.30 

+ 0.50 

1 0.20 

ff 

M 


a. 

i 

16.1 

ff 

-0.1 


-0.26 


Hor. 

Up 


5 

16.2 

ff 

+ 0 J 


-0.06 


Vert. 

Vert. 


6 

(6.4 

f» 

+ 0.2 


+ 0 .04 


ff 

ff 


7 

16.8 

ff 

+ 0.4 


+ 0 .24 


ft 

M 


8 

17,0 

ff 

+ 0.2 

+ 0.16 

+ 0.04 

±0.13 

91 

ff 


9 

17 A 

M 

+ 0.4 


+ 0. !6 


Vert. 

Vert. 


10 

1 7.5 

If 

+ 0.1 


-0. 14 


ff 

ff 


! 1 

17.8 

ff 

+ 0.3 


+ 0.06 


91 

ff 


12 

16.0 

ft 

+ 0.2 


-0.04 


fl 

if 


13 

58.2 

ff 

+ 0.2 

+ 0.24 

-0.04 

t 0.03 

ft 

ff 


Average for 6 Periods + 0.28 Average± 0. 14 

S-Slow. F-Fast,4Gain 

-Loss .Vt -Vertical. Nor.-Norizontal.Temp.-Temperature,Nt."N 

ght,Da.-Day, Dn.'Down. 

7U fable complies a 60 Da^s run of this watch without change of regulation. 
Mean Dad/ Rate for ! 2 Periods or 60 Da^s +0.1 7 See Preceding Pages. 

MEAN VARIATION OF Rate for same Periods and Days to.18 

Note. 


40 































































(7ABLE28?.TIME SERVICE RECORDS OF FINE TIME PIECES Iff SECONDS A^D DECIH AL5.(TABLE 23)j 
WATCH( I ) N ?.28428 GENEVA WATCH WITH mGfTRECORD. ~“ 

.y"i'" ;pa -* L ~" a,aalM V ,f.xfir.w ; . » 


1309 

Timed 

S 

Dai!/ 

Mean 

Variation 

Mean 

Bow 

Face 

^ j 

i ! 

■ r.arn^t. 

Nov. 

Daily 

F 

Rate 

Dai 1 y 

from Mean 

Variation 

Vertical 

Up vt. 

at Nt 

13 

0 .4 

S. 


Rate 

Daily Rale 

of Rate 

or Hor. 

or Dn, 

or Da 

14 

0 .2 

90 

+ 0.2 


-0.20 


Vert, 

Vert. 


15 

0.1 

F. 

+ 0,3 


-0.10 


19 

il 


16 

0.6 

99 

+ 0.5 


+ 0.10 


Sf 

l» 


17 

! .1 

19 

+ 0.5 


o 

© 

4- 


19 

ii 


13 

I .6 

09 

+ 0.5 

+ 0.40 

+ 0 . so 

+ 0.12 

ii 

19 


19 

2. 1 

«9 

+ 0.5 


-0.16 


Vert. 

Vert. 


20 

2.S 

99 

+ 0.5 


“0.16 


09 

19 


21 

3 .3 

01 

+ 0.7 


+ 0,04 


09 

69 


22 

4.2 

99 

+ 0.9 


+ 0.24 


id 

61 


23 

4 .9 

l» 

+ 0.7 

+ 0.6S 

+ 0.04 

+ 0.13 

» 

«• 


24 

5.3 

II 

+ 0.4 


+ 0.14 


Hor. 

Down 


25 

5.7 

01 

+ 0.4 


+ 0.14 


Vert. 

Vert. 


26 

6 .0 

99 

+ 0.3 


+ 0.04 


ii 

09 


27 

6 .0 

19 

-0.0 


-0.28 


19 

99 


28 

6 .2 

91 

+ 0.2 

+ 0.28 

-0.08 

t 0. S3 

II 

10 


23 

6 .2 

90 

-0.0 


- 0.12 


Vert. 

Vert. 


30 

6 .3 

ii 

+ 0.1 


-0.02 


09 

91 


Dec. 

6 .4 

90 

+ 0.1 


ev* 

© 

© 

I 


91 

90 


2 

6 .7 

09 

+ 0.3 


+ 0.18 


09 

61 


3 

6 .8 

19 

+ 0.1 

+ 0.12 

- 0.02 

±0.07 

It 

00 


4 

7 .5 

99 

+ 0.7 


- 0.02 


Vert. 

Vert. 


5 

a .2 

o 

+ 0.7 


- 0.02 


01 

19 


6 

9 .0 

81 

+ 0.6 


+ 0.08 


99 

99 


7 

9 .6 

09 

+ 0.6 


-0.12 


ii 

ii 


8 

10.4 

00 

+ 0.8 

+ 0.72 

+ 0.08 

± 0.06 

ii 

H 


9 

IS .3 

99 

+ 0.9 


+ 0.04 


Vert. 

Vert. 


10 

12.2 

99 

+ 0.9 


+ 0.04 


90 

Cl 


IS 

13 .2 

99 

+ S .0 


+ 0.14 


01 

10 


12 

14.0 

»l 

+ 0.8 


-0.06 


91 

II 


13 

14.7 

09 

+ 0.7 

+ 0.86 

-0.S6 

±0.09 

99 

10 


Average for 6 Periods 

+ 0.50 Average 

fo.so 

5-Slow, F* Fast, T Gain 


- Los s.Vt- Vertical. Hor.-Horizontal,Temp.-Temperature,Nt.~ Night, Da.-Pay, Dn.-Down. 


This table completes a 6 0 Da_ys run of this watch without change of regulation 
Mean Daily Rate for I 2 Periods or S 0 Days + 0.3 2 See Preceding Pages. 
MEAN VARIATION OF Rate for same Periods and Days ±0.14 
Note : 


41 






















































































(TABLE 29J.TI ME SERVICE RECORDS OF ONE TIME PIECES IN SECONDS AND DECIMAL5.(TA6LE29 ) 

WATCH ( A ) N °: 

132676 SWISS WITH KEW OBSERVATORY RECORD. 

1909 

Timed 

s 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Dec. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up vt. 

at Nt 

13 

18.2 

F . 


Rate 

Daily Rats 

of Rate 

or Hor . 

or Dn. 

or Da 

14 

17.0 

«i 

- 0.4 


- 0.48 


Hor . H . 

Up. N. 


15 

17.2 

«i 

- 0.6 


- 0.66 


H 

it 


16 

17.7 

ft 

+ 0.5 


+ 0.42 


(i 

If 


17 

18.2 

ii 

+ 0.5 


+ 0.42 


n 

if 


i a 

18.6 

•1 

+ 0.4 

+ 0.08 

+ 0.32 

± 0.46 

• 1 

ii 


19 

19.0 

II 

+ 0.4 


- 0.02 


Hor . N , 

Dn . N . 


20 

19.6 

it 

+ 0.6 


+ 0.16 


it 

It 


21 

20.0 

•I 

+ 0.4 


- 0.02 


n 

II 


22 

20.3 

N 

+ 0.3 


- 0.12 


it 

II 


23 

20.7 

•1 

+ 0.4 

+ 0.42 

- 0.02 

± 0.07 

ii 

II 


24 

20.4 

ft 

- 0.3 


- 0.26 


Hor.N. 

Up. N. 


25 

20.2 

II 

-0.2 


- 0.16 


99 

Dn. “ 


26 

20.0 

n 

- 0.2 


- 0.18 


N 

Up. " 


27 

20.2 

it 

+ 0.2 


+ 0.22 


ii 

Dn. m 


26 

20.6 

II 

+ 0.4 

- 0.02 

+ 0.42 

± 0.26 

II 

Up. " 


29 

20.7 

II 

+ 0.1 


+ 0.10 


Ho*, ft 

Dn. N. 


30 

20.8 

II 

+ 0.1 


+ 0.10 


99 

ii 


31 

21.2 

M 

+ 0.4 


+ 0.40 


It 

H 


Jan. 

20.8 

f» 

- 0.4 


- 0.40 


II 

if 


2 

20.6 

It 

- 0.2 

- 0.00 

- 0.20 

± 0.24 

II 

•i 


3 

20.2 

ii 

- 0.4 


+ 0.46 


Vert. 

Vert. 


4 

19.2 

ft 

- f .0 


- 0.14 


ei 

•I 


5 

18.4 

If 

- 0.8 


+ 0.06 


ii 

>i 


6 

17.4 

II 

- 1 .0 


- 0.14 


H 

•i 


7 

16.3 

ft 

- 1.1 

-0.86 

- 0.24 

± 0.21 

99 

M 


8 

15.5 

n 

- 0.8 


+ 0.18 


Hor.N. 

Up.N. 


9 

14.7 

•i 

- 0.8 


+ 0.16 


M 

If 


10 

13.8 

it 

- 0.9 


+ 0.08 


M 

99 


II 

12.6 

n 

-1.2 


- 0.22 


ft 

ii 


12 

11.4 

ii 

-1.2 

-0.98 

- 0.22 

± 0.18 

H 

99 


Average for 6 Periods 

— 0.23 Averagt 

;±0.23 

5-Slow, F* Fast, + Gain 

-Loss,VT.-Vertical, Hon-Hori2onbl,Temp.-Temperature,Nt-Night, Da.-Day, Dn.-Down. 

This table completes a 90 Da/s run 

of this watch without change of regulation. 

Mean Daily Rate for IS Periods or 90 Days +0.04 

See Preceding Pages. 

Mean Variation of Rate for same 

Periods and Days £0.20 


Note 

: 









42 

























































(TABLE 30) Jl ME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE 30) 

WATCH ( I )N9. 

28428 

SWISS ALSO WITH KEW R 

ECORD. 

1909 

Timed 

s 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Dec. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

13 

14.7 

F. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

14 

15.0 

ii 

+ 0.3 


+ 0.08 


Hor. 

Up 


15 

15.3 

•• 

+ 0.3 


+ 0.08 


ii 

•9 


16 

15.5 

91 

+ 0.2 


-0.02 


ii 

91 


17 

16.0 

ll 

+ 0.5 


+ 0.28 


91 

99 


ia 

15.8 

II 

-0.2 

+ 0.22 

-0.42 

±0.16 

99 

99 


19 

16.0 

It 

+ 0.2 


+ 0.58 


Hor. 

Dn.N. 


20 

15.0 

t * 

- 0.2 


+ 0.18 


91 

99 


21 

15.0 

N 

-0.8 


-0.42 


19 

9# 


zz 

14.4 

II 

-0.6 


- 0.22 


99 

If 


Z 3 

13.9 

• 9 

-0.5 

-0.38 

-0.12 

±0.30 

91 

99 


24 

13.7 

II 

-0.2 


- 0.50 


Hor. 

Up N. 


25 

14.0 

91 

+ 0.3 


- 0.00 


19 

Dn. “ 


26 

14.4 

#• 

+ 0.4 


+ 0.10 


91 

Up - 


27 

14.8 

II 

+ 0.4 


+ 0.10 


19 

Dn. '• 


28 

15.4 

It 

+ 0.6 

+ 0.30 

+ 0.30 

±0.20 

99 

Up " 


29 

15.6 

II 

+ 0.2 


+ 0.08 


Hor. 

Dn.N. 


30 

15.5 

II 

-0.1 


- 0.22 


9* 

i* 


31 

15.7 

II 

+ 0.2 


+ 0.08 


<9 

•« 


Jan. 

15.8 

II 

+ 0.1 


- 0.02 


99 

if 


2 

16.0 

99 

+ 0.2 

+ 0.12 

+ 0.08 

±0.10 

19 

if 


3 

16.2 

II 

+ 0.2 


- 0.44 


Vert 

Vert. 


4 

16.5 

II 

+ 0.3 


-0.34 


99 

•i 


5 

17.3 

H 

+ 0.6 


+ 0.16 


19 

if 


6 

18.2 

II 

+ 0.9 


+ 0.26 


99 

99 


7 

19.2 

to 

+ I .0 

+ 0.64 

+ 0.36 

10.31 

II 

If 


8 

19.7 

II 

+ 0.5 


-0.12 


Hor.N. 

Up N. 


9 

20.1 

•• 

+ 0.4 


-0.22 


<9 

•I 


10 

20.7 

to 

+ 0.6 


-0.02 


99 

•i 


II 

21.5 

« 

+ 0.0 


+ 0.18 


II 

•9 


12 

22.3 

to 

+ 0.8 

+ 0.62 

4 -O.I 8 

±0.14 

99 

91 


Average for 6 Periods 

+ 0.25 Average 

•± 0.21 

5-Slow, F-Fast, + Gain 

-Loss .Vt. -Vertical. Hor.- Horizontal Jemp.-Temperature,Nt.-Night,Da.-Day, Dn.-Down. 

This 

fable completes a 9 0 Days run 

of this watch without chang 

e of regulation. 

Mean 

Daily Rate for 18 Periods or 90 Days +0-29 

See P+ececfcng Pages. 

Mean Variation of Rate for same 

Periods and Days —0.16 



Note: 










43 






















































(TABLE 33) TiME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE 33) 


WATCH (A ) NFI32676 SWISS 


\SIQ 

f’E0. 

Timed 

Daily 

S 

F 

Daily 

Rate 

Mean 

Daily 

Variation 
from Mean 

Mean 

Variation 

Bow 

Vertical 

Face 
Dp Vt. 

Temp, 
at Nt 

16 

O.i 

S. 


Rate 

Daily Rate 

of Rate 

or 

Hon 

or 

Dn. 

or Da 

17 

0.5 

F. 

+ 0.6 


-0.78 


Her*. 

Ur* 

n. 


IS 

1 .3 


+ ! .4 


+ 0.02 


Vert. •• 

Vert, " 


id 

3.2 

it 

+ 1.3 


-0.08 


•t 

n 

00 

98 


20 

5 .0 

<i 

+ f .8 


+ 0.42 


il 

18 

99 

to 


z\ 

6,8 

ii 

+1 .a 

+ S.38 

+ 0.42 

±0.34 

if 

tl 

99 

99 


zz 

7.7 

if 

+ 0.9 


+ 0.52 


il 


Dm. 

09 


23 

7.8 

il 

+ 0.1 


-0.28 


if 

01 

01 

90 


24 

8 .0 

ii 

+ 0.2 


-0.18 


96 

ii 

01 

90 


25 

6 .2 

it 

+ 0.2 


-0.18 


II 

II 

Up 

99 


26 

a.7 

ii 

+ 0.5 

+ 0.38 

+ 0. S2 

±0.26 

1) 

00 

00 

91 


27 

a .9 

ii 

+ 0.2 


-0.38 


il 

99 

01 

II 


2d 

3 J 

it 

+ 0.2 


-0.38 


61 

61 

Up 

69 


Mar. 

9 .8 

61 

+ 0.7 


+ 0.12 


M 

9t 

ta 

61 


2 

10.8 

n 

+ 1 .0 


+ 0.42 


II 

99 

93 

If 


3 

IS. 6 

tt 

+ 0 .3 

+ 0,58 

+ 0.22 

±0.30 

If 

M 

99 

1 c 


4 

12.4 

91 

+ 0.8 


+ 0.18 



Dm. 

to 


5 

13.3 

K 

+ 0.9 


+ 0.28 



if 

99 


6 

S3.5 

ii 

+ 0.2 


-0,42 



yp 

« 


7 

13.9 

19 

+ 0.4 


-0.22 



99 

• 9 


6 

S4.7 

If 

+ 0 .6 

+0.62 

+ 0.16 

± 0.26 


9i 

90 


9 

15.7 

il 

+ S .0 


-0.06 



10 

09 


10 

16.7 

91 

+ 1 .0 


-0.06 



0W. 

99 


II 

17.8 

16 

+ 1.1 


+ 0,04 



01 

W 


12 

is .a 

91 

+ S .0 


-0.06 



00 

00 


13 

20.0 

61 

+ 1 ,2 

+ 1.06 

+ 0,14 

±0.07 


Up 

91 


14 

21.4 

01 

+ S A 


-0.06 



91 

01 


15 

22.1 

If 

+ 1 .3 


-0.S6 



Dm. 

If 


16 

24.3 

i« 

+ S .6 


+ 0. S4 



90 

0l 


17 

26.1 

If 

+ 1 .8 


+ 0.34 



!jp 

II 


S3 

27.3 

II 

+! .2 

+ 1.46 

-0.26 

±0.19 


II 

01 



Average for Periods +0,01 Avera<ge± 0,24 


S-Slow, F* Fast, + Gain 


-Loss ,VT.-Vertical, Nor.- Horizontal Jemp.-Temperature, Nt,~ Nitf ht,Pa-Day, Dn.-Down. 

Note:-The tabulated results above were obtained by a Pocket test conducted 
in the same manner as for Tables 1,2,3, Pages 14,15,16. The Regulation was 
in no instance changed during the Trial Run. Page 4 further explains. 

Note: 


44 















































































WATCH(J) N9.2 8428 SWIS S 


! FABLE 34JJTIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE 34) 


1910 

Timed 

S 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp, 

Feb. 

Daily 

F 

Rate 

Dai !y 

from Mean 

Variation 

Vertical 

U D Vt. 

at Nt. 

16 

Z .2 

F. 


Rate 

Daily Rate 

of Rate 

or Mor: 

or 

Dn. 

or Da 

17 

Z .1 

19 

-0.3 


+ 0.16 


Vert. Nt. 

Vert. Nr. 


id 

3 .6 

II 

-0.5 


-0.22 


it ts 

01 

•9 


19 

3 .0 

If 

-0.6 


- 0.32 


•* $9 

00 

II 


% 0 

0 .0 

II 

-0.2 


+ 0.06 


Hoi?. " 

Up 

*0 


21 

0 .6 

19 

-0.0 

-0,28 

+ 0.28 

±0.22 

*• ii 

i* 

ft 


22 

I .0 

03 

+ 0.2 


-0.52 


99 01 

«• 

fit 


2 3 

3 .6 

15 

+ 0.8 


+ 0.06 


II II 

Dm. 

00 


?A 

3 .3 

19 

+ ( .5 


+ 0.78 



*0 

01 


25 

4 .3 

19 

+ l .0 


+ 0.28 



tf 

tl 


26 

4 A 

If 

+ 0.1 

+ 0.72 

-0.62 

+ 0.48 


Up 

If 

„ J 

27 

4 .6 

II 

+ 0.2 


+ 0.24 



0? 

>1 


2d 

5 .0 

II 

+ 0.4 


+ 0.44 



Dn. 

00 

1 

Mar, 

4.6 

If 

-0.2 


-0.16 



00 

00 


2 

4.6 

II 

-0.2 


-0.16 



II 

If 


3 

4 .2 

II 

-0.4 

-0.04 

-0.36 

±0.27 


10 

(9 


4 

4 .0 

10 

-0.2 


-0.12 



Up 

91 


5 

3 .6 

<1 

-0.2 


- 0.12 



51 

01 


6 

3.5 

91 

-0.3 


-0.22 



Dn. 

II 

\ 

7 

3.5 

II 

-0.0 


+ 0.06 



10 

If 

....! 

a 

3.6 

If 

+ 0.3 

-0.08 

+ 0.36 

±0.16 


Up 

01 


9 

4.2 

'•0 

+ 0.4 


-0.68 



00 

01 


10 

5.2 

II 

+ 1 .0 


-o.oa 



19 

II 


u 

7.0 

10 

+ 1 .8 


+ 0.72 



Dn. 

II 


12 

8.8 

00 

+ 1 .8 


+ 0.72 



90 

91 


id 

9.2 

PI 

+ 0.4 

+ J.08 

-0.60 

±0.58 


Up 

00 


14 

8 .7 

II 

-0.5 


+ 0.04 




50 


15 

a .i 

01 

-0.6 


-0.06 



#1 

00 


16 

7 .4 

10 

-0.7 


-0.16 



09 

00 


! 7 

7 .0 

01 

-0.4 


+ 0.14 



Dn . 

•1 


13 

6 .5 

II 

-0.5 

-0.54 

+ 0.04 

±0.09 


10 

If 


Average for 

Periods 

+ Q. 1 4 Average 

±0.30 

5- Slow, F' Fast, + Gain 


-Loss .Vx-Vertical, tier.- Horizontal Jemp.-Temperature, Nt.~ Night, Pa.-Pay Dn.-Pown. 


Motes: On completion of this pocket test the Watch was cleaned.oiled and 
new case appli< 


45 






























































































(TABLE35).TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE 35 ) 

WATCH ( K )N9. 

AMERICAN STOCK WATCH 16 SIZ 

E 21 JEWELS. 

1910 

Timed 

s 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp 

May 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt, 

16 

5 .5 

F. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

17 

4.4 

#• 

- / . 1 


+ 0.72 


Vr. Nt. 

Vr. Nt. 


16 

2 .8 

M 

-1 .6 


+ 0.22 


•• H 

M M 


19 

0.0 

• • 

-2.8 


-0.98 


fl M 

f« II 


20 

2.5 

s. 

-2.5 


-0.68 


II il 

II II 


zi 

3.6 

fl 

-1 .1 

-1.82 

+ 0.72 

+ 0.66 

N H 

II II 


zz 

7.4 

fl 

-3.8 


+ 0.02 


Vr. Nt. 

Vt. Nt. 


Z3 

8.7 

It 

- 1.3 


+ 2.52 


ii ii 

•i fi 


24 

II .9 

If 

-3.2 


+ 0.62 


If H 

ii if 


Z5 

18.8 

II 

-6.9 


-3.08 


fl M 

if ff 


26 

22.7 

II 

-3.9 

-3.82 

-0.08 

±1.26 




Z7 

25.4 

II 

-2.7 


+ 1 .56 





ZQ 

29.0 

II 

-3.6 


+ 0.66 





29 

33.0 

H 

-4.0 


+ 0.26 





30 

38.2 

99 

-5.2 


-0.94 


Hor.Nt 

Dn. Nt. 


31 

44.0 

If 

-5.8 

-4.26 

- 1.54 

±0.99 

•f ii 

ff fi 


Average for 3 Periods 

— 3 30 Averag< 

?± 0.97 

5-Slow, F'Fast, + Gain 

WATCH ( )N9. 

6984 SEE FOL 

LOWING PAGE. 

19/0 

Timed 

s 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

May 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt, 

IS 

0 .5 

S. 


Rate 

Daily Rate 

of Rate 

or hor. 

or Dn. 

or Da 

17 

0 .7 

!• 

-0.2 


-0.32 


Vr. Nt. 

Vr. Nt. 


16 

0 .3 

II 

-f-0.4 


+ 0.28 


if ff 

if if 


16 

0 .2 

•l 

+ 0.1 


-0.02 


ff if 

•f M 


Z 0 

0 .0 

fl 

+ 0.2 


+ 0.08 


fl ft 

fl II 


Zl 

0 .1 

F 

tO.I 

+ 0.12 

-0.02 

±0.14 

II M 

fl H 


ZZ 

0 .2 

ii 

+ 0.1 


-0.40 


Vt. Nt. 

Vr. Nt. 


Z3 

1 .1 

ii 

+ 0.9 


+ 0.40 


II 99 

if ff 


24 

! .7 

ii 

+ 0.6 


+ 0.10 


99 M 

fi if 


25 

2 .3 

il 

+ 0.6 


+ 0.10 


M fl 

fl it 


26 

2 .6 

ii 

+ 0.3 

+ 0.50 

-0.20 

±0.24 

ii ii 

fl II 


Average for 2 Periods 

+ 0-31 Averag« 

;±0I9 

S-Slow. F'Fast. + Gain 

-Loss .Vr-Vertical, Hor.-horizontal,Temp.-Temperature.Nt.-Night,Da.-Day, Dn.-Down. 

Note 

:-THis watch 

was carried 15 to 16 hours each day.Tempenature 

while on the 

body 

89°to9lTah 

r.,Temp.about .6?. at night. The time Standard of comparison 

was the W.U.Tel. noon-day 

signals sent from Washington by the Naval Observatory. 

See 

Pages Following. 








46 





























































(lABLfc36JJ!ME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE 36) 

WAT 

CH ( C )N9.6984 ENGLISH SEE FO 

LLOWING PAGE. 

1910 

Timed 

s 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

May 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

26 

2.6 

F. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

27 

2.9 

If 

+ 0.3 


+ 0.16 





26 

2 .a 

ii 

-0.1 


-0.24 





29 

3 .2 

if 

+ 0.4 


+ 0.26 





30 

3.5 

if 

+ 0.3 


+ 0.16 


Hor. Nt. 

Dn. Nt. 


31 

3.3 

ff 

-0.2 

+ 0.14 

-0.34 

±0.23 

ff ft 

ff «i 


June 

3.3 

II 

-0.0 


+ 0.06 


if ff 

ff 41 


2 

3.4 

II 

+ 0.1 


+ 0.16 


if ff 

H 49 


3 

3.3 

if 

-0.1 


-0.04 


fl fl 

ft ft 


4 

3.1 

M 

-0.2 


-0.14 


Hor. Nr. 

Vt. Nt. 


5 

3.0 

If 

-0.1 

-0.06 

-0.04 

±0.09 

fl fl 

•• 4| 


6 

3.3 

If 

+ 0.3 


+ 0.24 


M <1 

ft If 


7 

3.3 

<1 

-0.0 


-0.06 


fl II 

ft fl 


6 

3.4 

fl 

+ 0.1 


+ 0.04 


•1 II 

fl ff 


9 

3.4 

II 

-0.0 


-0.06 


II II 

ff M 


10 

3.3 

fl 

-0 .1 

+ 0.06 

-0.16 

±0.11 




II 

3.2 

if 

-0.1 


+ 0,22 





12 

3.0 

i# 

-0.2 


+ 0.12 





13 

2.7 

41 

-0.3 


+ 0.02 





14 

2.1 

W 

-0.6 


-0.28 





15 

1 .7 

ft 

-0.4 

-0.32 

-0.08 

±0.14 




16 

1 .3 

•1 

-0.4 


-0.02 





17 

1 .1 

If 

-0.2 


+ 0.18 





Id 

0.7 

If 

-0.4 


-0.02 





19 

0 .3 

II 

-0.4 


-0.02 





20 

0 .2 

s 

-0.5 

-0.38 

-0.12 

±0-07 




21 

0 .7 

If 

-0.5 


-0.12 





22 

1 .1 

ft 

-0.4 


-0.02 





23 

1 .5 

fl 

-0.4 


-0.02 





24 

1 .3 

If 

+ 0.2 


+ 0.58 





25 

2.1 

If 

-0.8 

-0.38 

-0.42 

±0.23 




Average for 6 Periods 

— 0.16 Averaget 0.145 

S*Slow, F'Fast. + Gain 

- Los s.Vt.- Vertical, Hor.-Horizontal,Temp.-Temperature,Nt.'Night, Da.-Day, Dn.-Down. 

This Fable com 

pletes a 42 Days run 

of this watch without change of regulation. 

Mean 

Daily Rate for 8 Periods or 42 Days " 

■0.4 

See Preceding Pages. 

Mean Variation of Rate for same 

Periods and Days* 0.16 



Note: 











47 



























































(TABLE 37) JIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABL.E 37) 


WATCH ( C )N?.6984 ENGLISH KARUSSAL ESCAPEMENT. 21 JEWELS. 


1910 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

JuME 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

25 

2 . 1 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

26 

2 .8 

ii 

-0.7 


+ 0.02 


Vt. Nt. 

Vt. Nt. 


27 

4.0 

M 

- 1 .2 


-0.48 


n « 

II PC 


2Q 

4.3 

II 

-0.3 


+ 0.42 


If 81 

<i M 


29 

4 .9 

ii 

-0.6 


+ 0.12 


II II 

ii ii 


30 

5 .7 

II 

-0.6 

-0.72 

-0.08 

±0.22 




July 

6 .0 

Ii 

-0.3 


-0.06 





2 

6.8 

II 

-0.8 


-0.56 





3 

7 .3 

ii 

-0.5 


- 0.26 





4 

7 .4 

ii 

-0.1 


+ 0.14 





5 

6 .9 

ii 

+ 0.5 

-0.24 

+ 0.74 

+ 0.35 

Vt. Nt. 

Vt. Nt. 


6 

7 .0 

11 

-0.1 


-DOS 


m H 

ii H 


7 

7 .0 

II 

-0.0 


+ 0.04 


M 01 

•• ii 


8 

7.1 

ii 

-0.1 


-0.06 


If II 

i« H 


9 

6.9 

II 

+ 0.2 


+ 0.24 





10 

7.1 

II 

-0.2 

-0.04 

-0. 16 

±0.11 




II 

7 .3 

ii 

-0.2 


+ 0.(8 





12 

7 .8 

H 

-0.5 


-0.12 





13 

7 .9 

«i 

-O.f 


+ 0.28 





14 

8 .3 

fl 

-0.4 


-0.02 





15 

9 .0 

II 

-0.7 

-0.38 

-0.32 

±0.(8 

Vt. Nt. 

Vt. Nt. 


16 

9 .3 

H 

-0,3 


- 0.04 


ii m 

•f If 


17 

9 .4 

II 

-0.1 


+ 0.16 


it ii 

II 11 


18 

9 .3 

ii 

+ 0.1 


+ 0.3S 


II CP 

M IC 


19 

9 .0 

it 

-0.5 


-0.24 





20 

10.3 

ii 

-0.5 

— 0.26 

-0.24 

±0.21 




21 

10.7 

ii 

-0.4 


+ 0.08 





22 

1! .3 

II 

-0.6 


'i 

o 

• 

?0 





23 

II .7 

n 

-0.4 


+ 0.08 





24 

12.2 

II 

-0.5 


-0.02 





25 

12.7 

II 

-0.5 

-0.48 

-0.02 

±0-06 





Average for 6 Periods — 0. 35 Averag e± 0.19 


3-Slow, F'Fast, + Gain 


-Loss .W.-Vertical, tior.-liorizon!:al,Temp.-Temperatyre,^t.~N)^ht,Da.-Day, Dn.-Down. 

This table completes a 70 Da_ys run of this watch without change of regulation, 
Mean Daij/ Rate for 14 Periods or 70 Da7s~0.!7 Sec Preceding Pages. 

Mean Variation of Rate for same Periods and Da^ s ± 0J7 

Note. 


48 
































































(TABLE 38) .TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE 38) 

WATCH ( L)N9. 


AMERICAN STOCK 16 SIZE 23 JEWELS 


1910 

Timed 

s 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

(June 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

25 

28.7 

F. 


Rate 

Daily Rate 

of Rate 

or hor. 

or Dn. 

or Da 

26 

27.8 

it 

-0.9 


+ 0.22 


Vt. Nt. 

Vt. Nt. 


27 

27.2 

it 

-0.6 


+ 0.52 


N •• 

ii i# 


28 

26.1 

ii 

- 1.1 


+ 0.02 


II II 

ii n 


29 

24.8 

ii 

- 1.3 


-0.18 


•# ii 

it ii 


30 

23.1 

li 

- 1 .7 

-1.12 

-0.58 

±0.30 




July 

20.2 

it 

-2.9 


+ 0.28 





2 

18.7 

ii 

- 1 .5 


+ 1.68 





3 

16.5 

ii 

-2.2 


+ 0.96 





4 

10.6 

li 

-5.9 


-2.72 





5 

7 .2 

n 

-3.4 

-3.18 

-0.22 

+ 1.18 




6 

6 .0 

ii 

- 1 .2 


+ 0.90 


Vt. Nt. 

Vt. Nt. 


7 

3 .4 

ii 

-2.6 


-0.50 


ii ii 

ii ii 


8 

1 .2 

ii 

-2.2 


-0.10 


n ii 

ii H 


9 

1 .2 

S. 

-2.4 


-0.30 


>• ». 

ii ii 


10 

3.3 

M 

-2.1 

-2.10 

-0.00 

±0.36 




II 

5.1 

II 

- 1 .8 


-0.66 





12 

6 .0 

li 

-0.9 


+ 0.24 





13 

7.8 

n 

- 1 .8 


- 0.66 





14 

8 .0 

H 

-0.2 


+ 0.94 





15 

9 .0 

n 

- 1 .0 

-IJ4 

+ 0.14 

+ 0.53 

Vt. Nt. 

Vt. Nt. 


16 

II .0 

n 

-2.0 


— 0.24 


ii *i 

M 1' 


17 

12.4 

ii 

- 1 .4 


+ 0.36 


ii » 

i« ii 


18 

13.2 

ii 

-0.8 


+ 0.96 


i » 

ll If 


19 

15.2 

ii 

-2.0 


-0.24 





20 

17.8 

n 

-2.6 

-1.76 

-0.84 

±0.53 




21 

18.3 

n 

-0.5 


+ 0.64 





22 

19.0 

it 

-0.7 


+ 0.44 





23 

20.9 

ll 

-i .9 


-0.76 





24 

22.0 

n 

-1 .1 


+ 0.04 





25 

23.5 

Ii 

-1 .5 

-1.14 

-0.36 

± 0.45 




Average for 6 

Periods 

— 1.74 Average 

±0.56 

S* Slow, F'Fast, + Gain 

-Lcss.Vr.-Vertical, Hor.-ftorizontal,Temp.TemperaWe,Nt.*Ni$ht,Da.-Day, On.-Down. 

Note:-This watch 

was carried I5tcl6 hours each day.Temperature 

while on the 

body 

89To91 

°Fah 

r. .Temp. about .G^at night The time Standard of comparison 

was the W.U.Tel. noon-day 

signals sent from Washington by the Naval Observatory. 

Conti 

nued on 

following Page 







49 























































{TABLE 39J.TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE 39) 

WATCH { L ) AMERICAN CON 

TINUED FROM P 

RECEDIN 

G PAGE. 

1910 

July 

Timed 

Daily 

S 

F 

Daily 

Rate 

Mean 

Daily 

Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up Vt. 
or Dn. 

Temp, 
at Nt. 
or Da 

25 

23.5 

S. 


26 

24.6 

» 

- 1 . 1 


-0.22 


Nor. Nt. 

Up Nt. 


27 

25.9 

M 

-1.3 


-0.42 


•• ii 

M H 


26 

25.9 

•i 

-0.0 


+ 0.68 


Vt. Nt 

Vt. Nt 


29 

27.0 

It 

- 1.1 


-0.22 


ii ii 

it H 


30 

27.9 

it 

-0.9 

-0.88 

-0.02 

±0.35 

if ii 

H M 


31 

26.6 

•i 

-0.7 


-0.14 





Aug. 

29.0 

H 

-0.4 


+ 0.16 





2 

30.0 

if 

- 1 .0 


-0.44 





3 

30.3 

it 

-0.3 


+ 0.26 





4 

30.7 

if 

-0.4 

-0.56 

+ 0.16 

±0.23 




5 

31.1 

it 

-0.4 


+ 0.46 





6 

31.7 

li 

-0.6 


+ 0.26 





7 

33.4 

•• 

-1.7 


-0.84 


Hor. Nt 

Up Nt. 


a 

35.3 

if 

-1.9 


-1 .04 


Vt. " 

Vt. - 


9 

35.0 

ii 

+ 0.3 

-0.86 

+ 1 .16 

±0.75 

ii ii 

M II 


10 

34.3 

ii 

+ 0.7 


+ / .84 


•i ii 

it H 


II 

35.2 

it 

-0.9 


+ 0.24 





12 

35.8 

ii 

-0.6 


+ 0.54 





13 

37.9 

if 

-2.1 


-0.96 





14 

40.7 

ii 

-2.8 

-1.14 

- 1.66 

±1.05 




15 

42.8 

if 

-2.1 


-0.96 





16 

43.2 

«• 

-0.4 


+ 0.74 





17 

44.0 

ii 

-0.8 


+ 0.34 





16 

45./ 

li 

- 1.1 


+ 0.04 





19 

46.4 

ii 

-1.3 

-1.14 

-0.16 

±0.45 




20 

48.2 

ii 

- 1 .8 


+ 0.82 


Hor. Nt 

Up Nt. 


21 

52.3 

it 

-4.1 


- 1 .48 


m m 

Dn. " 


22 

56.0 

H 

-3.7 


-1.08 


Vt. " 

Vt. ■ 


23 

56.9 

it 

-0.9 


+ 1 .72 


it it 

ii a 


24 

59.5 

*» 

-2.S 

-2.62 

+ 0.02 

±1.02 

« a 

a m 


Average for 6 Periods — 1.20 Average± 0«64 

S-Slow, F- Fast, + Gain 

-Loss ,Vr.*Vertical. Hor.- Horizontal,Temp.-Temperature, Nt.- Night, Da.-Day, Dn.-Down. 

This table completes a 60 Days run of this watch without change of regulation 
Mean Daily Rate for 12 Periods or 60 Days ”1.47 $«« Pr««tmg Pages. 

Mean Variation of Rate for same Periods and Da^s+0.60 

Note: 
















































(TABLE40).TIME SERVICE RECORDS OFFINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE 40 ) 

WATCH ( C)N°.6984 ENGLISH, CONTINUED FROM TABLE 37 

1910 

Timed 

s 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

July 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

25 

12.7 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

26 

13.5 

II 

-0.8 


-0.24 


Hor. Nr. 

Up Nt. 


27 

14./ 

n 

-0.6 


-0.04 


il ii 

ii il 


28 

14.3 

H 

-0.2 


+ 0.36 


Vt. - 

Vt. - 


29 

15.2 

•I 

-0.9 


-0.34 


a H 

•i ii 


30 

15.5 

il 

-0.3 

-0.56 

+ 0.26 

+ 0.25 




31 

15.9 

H 

-0.4 


+ 0.14 





Aug. 

16.1 

il 

-0.2 


+ 0.34 





2 

16.8 

ii 

-0.7 


-0.16 





3 

17.3 

H 

-0.5 


+ 0.04 





4 

16.2 

it 

-0.9 

-0.54 

-0.36 

±0.21 




5 

19.2 

ii 

- 1 .0 


-0.54 





6 

19.7 

ii 

-0.5 


-0.04 





7 

20.0 

if 

-0.3 


+ 0.16 


Hor.Nt 

Dn. Nt 


8 

19.8 

H 

+ 0.2 


+ 0.66 


Vt. - 

Vt. - 


9 

20.5 

H 

-0.7 

-0.46 

-0.24 

±0.33 

ii ii 

M H 


10 

22.8 

n 

-2.3 


- 1 .04 


if it 

•1 •• 


II 

23.7 

ii 

-0.9 


+ 0.36 





12 

24.6 

•i 

-0.9 


+ 0.36 





13 

25.6 

it 

- 1.0 


+ 0.26 





/4 

26.8 

ii 

- 1.2 

-1.26 

+ 0.06 

±0.42 




15 

28.5 

ii 

- 1.7 


-0.62 





16 

29.5 

if 

- 1 .0 


+ 0.08 





17 

30.4 

fi 

-0.9 


+ 0.18 





16 

31.3 

il 

-0.9 


+ 0.18 





19 

32.2 

19 

-0.9 

-1.06 

+ 0.18 

±0.25 




20 

32.7 

n 

-0.5 


+ 0.12 


Hor.Nt. 

Dn. Nt 


21 

33.1 

•I 

-0.4 


+ 0.22 


ii «i 

Up m 


22 

33.5 

H 

-0.4 


+ 0.22 


Vt. •• 

Vt. •• 


23 

34.8 

ii 

-1.3 


-0.68 


ii ii 

l» H 


24 

35.3 

• 1 

-0.5 

-0.62 

+ 0.12 

±0.27 

ii ii 

•i <» 


Average for 6 Periods 

— 0.75 Average 

±0.29 

5-Slow, F'Fast, + Oain 

-Loss .Vt -Vertical. Hor.- Horizontal Jemp.-Temperature, Nt - Night, Da.-Day, Dn.-Down. 

This 

[■able completes a 100 Da/s run 

of this watch without chang 

e of regulation. 

Mear 

Daily Rate for 20 Periods or 100 Days - 

0.35 

Sec Preceding Pagti. 

Mean Variation of Rate for same 

Periods and Days± 

0.20 



Note 

: 










51 


















































(TABLE4DJIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE4I) 


WATCH (M ) N9. (AMER.) R.R. !6 SIZE 19 JEWELS FROM STOCK. 


1910 

Timed 

S 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Awe. 

Daily 

F 

Rate 

Dai iy 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

3 

8 .8 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

10 

7 A 

»i 

+ l .4 


+ 0.14 





1! 

6.4 

tl 

+ | .0 


-0.26 





12 

5.5 

II 

+ 0.S 


-0.36 


Hor. Nt. 

Up Nt. 


13 

4.6 

ti 

+ 0.9 


-0.36 


ii « 

99 99 


14 

Z .5 

n 

-1-2.1 

+ 1,2* 

+ 0.84 

±0.39 




15 

1 .0 

it 

+ 1 .5 


+ 0,28 





16 

1 .2 

II 

! 

O 

© 


- i AZ 





17 

0 .0 

il 

+ 1 .2 


- 0.0 z 





ia 

! .7 

F. 

+ S .7 


+ 0 .48 





JS 

3.6 

n 

+ 1 .9 

+ S .22 

+ 0.28 

±0.58 




20 

5.8 

a 

+ 2.2 


-0.34 


Hor.Nt. 

Dm. Nt. 


z\ 

9.6 

•i 

+ 3*8 


+ J .26 


if it 

Up " 


zz 

15.4 

ii 

+ 5.8 


+ 3.26 





23 

16.8 

it 

+ 0.8 


- \ .74 





24 

16.3 

n 

+ 0.1 

+ 2.54 

-2.44 

±1.81 




25 

20.2 

ii 

+ 3.9 


+ 3.28 





26 

16.3 

ii 

-3.9 


-4.52 





27 

16.7 

ti 

+ 0.4 


-0.22 





28 

18.0 

n 

+ 1 .3 


+ 0.68 


Hor. Hr. 

Dn. Nt. 


ZB 

19.4 

ii 

+ 1 .4 

+ 0.62 

+ 0.78 

1 1.89 

Vt. " 

Vr. •• 


30 

21.1 

ii 

+ 1 .7 


+ 1.30 





31 

22.6 

ii 

+ 1.7 


+ 1.30 





Sept, 

B2.7 

n 

-0.1 


-0. 50 


Hor. Nt. 

Up Nt. 


Z 

24. 8 

ii 

+ 2.1 


+ 1.70 





3 

21 .4 

ii 

-3.4 

+ 0.40 

-3.60 

±1.72 




4 

18.0 

ii 

-3.4 


-0.72 





5 

15.4 

ii 

-2.6 


+ 0.08 





6 

13.7 

ii 

- ! .7 


+ 0.98 





7 

10.2 

ii 

-3.5 


-0.62 





a 

8 .0 

n 

-2,2 

-2.68 

+ 0.48 

±0.62 





Average for 6 Periods + Q.58 Average± 1.17 


5-Suow, F'Fast, + Cam 


-Loss .W.-Vertical, Hor.- Hcmizontal Jemp.-Temperature, Nt.~ Night. Da.- Day, Dn.-Down. 

Note:-The tabulated results above were obtained by a Pocket test conducted 
in the same manner as for Tables 1.2.3. Pages 14,15,16. The Regulation was 
in no instance changed during the Trial Run Page 5 further explains. 

Note: 


52 




























































(TABLE42).TIME SERVICE RECORDS OFFINETIME PIECE5 IN SECONDS AND DECIMALS.(TABLE 42) 

WATCH ( C )No 

6984 ENGLISH CONTINUED FROM TABLE 40 

1910 

Timed 

s 

Dai 1 y 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Sept. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

id 

52.5 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

19 

53.4 

n 

-0.9 


+ 0.08 





20 

54. 1 


-0.7 


+ 0.28 





2! 

54.9 

II 

-0.8 


+ 0.18 





22 

56.1 

il 

- 1 .2 


- 0.22 





23 

57.4 

ii 

- 1 .3 

-0.96 

- 0.32 

+ 0.22 




24 

58.9 

•i 

- I .5 


-0.22 





25 

60.2 

n 

- 1 .3 


- 0.02 





26 

61.2 

•9 

- 1 .0 


+ 0.28 





27 

62.5 

It 

- 1 .3 


-0.02 





28 

63.8 

It 

- 1 .3 

-1.28 

- 0.02 

1 O.ll 




29 

65.1 

• • 

- 1 .3 


-0.20 


Hor. Nr. 

Dm Nt. 


30 

66.2 

<1 

- 1 .1 


- 0.00 


ii l» 

t# ii 


Oct. 

67.5 

II 

- I .3 


- 0.20 


01 1) 

it it 


2 

68.5 

t« 

- I .0 


+ 0.10 


It II 

It C| 


3 

69.3 

II 

-0.8 

-1.10 

+ 0.30 

+ 0.16 

it it 

it if 


4 

70.2 

It 

-0.9 


-0.02 


M It 

Up " 


5 

70.6 

n 

-0.6 


+ 0.28 


It It 

i* it 


6 

71.6 

ii 

-0.8 


+ 0.08 


It It 

II 1 9 


7 

72.6 

ii 

- 1 .0 


-0.12 


II h 

II 1) 


8 

73.7 

i* 

1 .1 

-0.88 

- 0.22 

+ 0.14 

n it 

If #1 


9 

74.9 

ii 

- 1 .2 


+ 0.44 





10 

76.3 

•i 

- 1 .4 


1-0.24 





It 

77.8 

#i 

- 1 .5 


+ 0.(4 





12 

80.0 


- 2.2 


-0.56 





13 

81.9 

it 

- 1 .9 

-1.64 

- 0.26 

+ 0.33 




14 

83.6 

•f 

-1 .7 


-0.44 





15 

85.0 

tt 

- 1 .4 


- 0.14 





16 

86.3 

It 

- 1 .3 


- 0.04 





17 

87.2 

II 

-0.9 


+ 0.36 





18 

68.2 

II 

-i.o 

-1.26 

+ 0.26 

+ 0.25 




Average for 6 

) Periods 

-1.19 

Average 

>+ 0.20 

S- Slow, F* Fast. + Gain 

-Loss .W.-Vertica!, Hor.- Horizontaljemp.-Temperature, Nt. - Night,Da- Da/, Dn.-Down. 

This 

table completes a 1 30 Da/s run 

of this wafch without chang 

e of regulation 

Mean 

Daily Rate for26 Periods ot 130 Days - 

0.53 

See Preceding Page* 

Mean Variation of Rate io» same 

Periods and Da_/sl 

0.20 


Note. 









53 
































































(TABLE43).TIME 5ERVICE RECORDS OF FINE TIME PIECES IN 5EC0ND5 AND DECIMAL5.(TABLE 43) 


WATCH ( M ) N9. AMER. R.R.(Ver. 

16 SIZE 

23 JEW 

EL. FRO 

M STOCK 

1910 

Timed 

S 

Dai ly 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Nov. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 

15 

3.1 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

16 

2 .2 

m 

+ 0.9 


+ 0.68 


Vt. Nt. 

Vt. Nt. 


17 

1 .6 

ii 

+ 0.6 


+ 0.38 


II M 

II M 


18 

1 .8 

fl 

-0.2 


-0.42 


II II 

If M 


19 

2 .3 

a 

-0.5 


-0.72 





20 

2.0 

H 

+ 0.3 

+ 0.22 

+ 0.08 

± 0.46 




21 

1 .8 

II 

+ 0.2 


+ 0.28 


Vt. Nt. 

Vt. Nt. 


22 

1 .2 

ii 

+ 0.6 


+ 0.68 


II •• 

M II 


23 

1 .2 

•i 

-0.0 


+ 0.08 


II II 

•1 M 


24 

1 .7 

ii 

-0.5 


-0.42 





25 

2 .4 

II 

-0.7 

-0.08 

-0.62 

±0.42 




26 

2.0 

ii 

+ 0.4 


+ 0.08 


Vt. Nt. 

Vt. Nt. 


27 

1 .8 

if 

+ 0.2 


-0.12 


•i if 

•« ii 


28 

1 .7 

H 

+ 0.1 


-0.22 


•1 M 

ii if 


29 

1 .6 

n 

+ 0.1 


-0.22 





30 

0 .8 

ii 

+ 0.8 

+ 0.32 

+ 0.48 

± 0.22 




Dec. 

0 .3 

F. 

+ 1 .1 


+ 0.36 


Vt. Nt. 

Vt. Nt. 


2 

1 .2 

ii 

+ 0.9 


+ 0.16 


ii •# 

ii •• 


3 

1 .6 

ii 

+ 0.4 


-0.34 


M II 

#1 H 


4 

2 .2 

n 

+ 0.6 


-0.14 





5 

2 .9 

if 

+ 0.7 

+ 0.74 

-0.04 

t 0.21 




6 

2 .8 

19 

-0.1 


-0.26 


Vt. Nt. 

Vt. Nt 


7 

3 .2 

II 

+ 0 .4 


+ 0.24 


II M 

•i ii 


8 

3.4 

*i 

+ 0.2 


+ 0.04 


II II 

•I ii 


9 

4.3 

II 

+ 0.9 


+ 0.74 





10 

3 .7 

II 

-0.6 

+ 0.16 

-0.76 

1 0.41 




II 

3 .4 

II 

-0.3 


-0.28 


Vt. Nt. 

Vt. Nt. 


12 

3 .5 

II 

+ 0.1 


+ 0.12 


•• ii 

H •• 


13 

4 .0 

ll 

+ 0.5 


+ 0.52 


•1 It 

•1 M 


14 

4 .5 

II 

+ 0.5 


+ 0.52 





15 

3 .6 

II 

-0.9 

-0.02 

-0.88 

±0.46 





Average for 6 Periods + 0.22 Averatfejl 0.36 


5-Slow. F- Fast, + Gain 


-Loss.Vr.-Vertical. hor.-HorizontalJemp.-Temperature,Nt.~Night,Da.- Day, Dn.-Down. 

Note:-The tabulated results above were obtained by a Pocket test conducted 
in the same manner as for Tables 1,2,3, Pages 14.15,16. The Regulation was 
in no instance changed during the Trial Run. Page 5 further explains. 

Note: See Next Page. 


54 

















































TABLE44JTIME SERVICE RECORDS OF FINE TIME PIKES IN SECONDS AND DECIMALS.(TABLE 44) 


WATCH ( N ) N9. AMER.R.R. (Van.) 16 SIZE 23 JEWELS. FROM STOCK 


1910 

Timed 

T 

Dai ly 

M ean 

Variation 

Mean 

Bow 

Face 

Temp. 

Nov. 

Daily 

F 

Rate 

Dai 1 y 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

15 

12.3 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

16 

12 .0 

M 

+ 0.8 


-0.12 


Vt. Nt 

Vt. Nt. 


17 

1! .7 

<1 

+ 0.3 


-0.62 



99 91 


18 

II .0 

it 

+ 0.7 


-0.22 


19 <9 

91 99 


19 

9 .4 

9* 

+ 1 .6 


+ 0.68 





20 

8 .2 

<9 

+ f .2 

+ 0.92 

+ 0.28 

+ 0.38 




21 

7 .3 

<9 

+ 0.9 


-0.66 


Vr. Nt. 

Vt. Nt. 


22 

5 .8 

•9 

+ 1 .5 


- 0.06 


99 91 

«9 99 


23 

4 .6 

Cf 

+ 1.2 


-0.36 


•9 19 

99 »9 


24 

2 A 

99 

+ 2.2 


+ 0.64 





25 

0 A 

99 

+ 2.0 

+ 1.56 

+ 0.44 

+ 0.43 




26 

0 .1 

F . 

+ 0.5 


+ 0.58 


Vt. Nt. 

Vt. Nt. 


27 

0 .2 

S. 

-0.3 


- 0.22 


99 99 

99 19 


26 

0 .8 

99 

-0.6 


-0.52 


99 99 

99 99 


23 

0 .5 

99 

+ 0.3 


+ 0.38 





30 

0 .8 

99 

-0.3 

-0.08 

- 0.22 

+ 0.38 




Dec. 

0 .7 

•9 

+ 0.1 


+ 0.56 


Vt. Nt. 

Vt. Nt. 


2 

0 .2 

F . 

+ 0.9 


+ 1 . 36 


«# 99 

•9 99 


3 

0 .8 

S. 

-1.0 


- 0.54 


99 19 

19 99 


4 

1 .8 

99 

- 1.0 


-0.54 





5 

3 .1 

99 

- 1.3 

-0.46 

-0.84 

±0.77 




6 

3 .9 

99 

-0.8 


-0.02 


Vt. Nt. 

Vt. Nt. 


7 

5 .6 

99 

- 1 .7 


-0.92 


99 99 

9« 99 


8 

5 .7 

99 

-0.1 


+ 0.68 


99 99 

99 91 


9 

6 .6 

99 

-0.9 


-0.12 





10 

7 .0 

99 

-0.4 

-0.78 

+ 0.38 

+ 0.42 




II 

7 .2 

99 

-0.2 


+ 0.52 


Vt. Nt. 

Vt. Nt. 


12 

7 .6 

9# 

-0.4 


+ 0.32 


99 99 

99 99 


13 

9 .2 

99 

- 1 .6 


-0.88 


19 99 

«• #• 


14 

10.3 

99 

-l.l 


-0.38 





15 

10.6 

99 

-0.3 

-0.72 

+ 0.42 

+ 0.50 





Average for 6 Periods + 0.07 Average* 0.48 


5- Slow, F* Fast, + Gain 


-Loss .VT.-Verti’cal, Hor.- horizontal Jemp.-Temperature, Nt.~ Night, Da-Day, Dn.-Pown. 


'Jotes - Test as usual- 


W&tches M,N both second Grade but differant makes. 


Com pare with each other and with C next page. 



























































(TABLE45) .TIME SERVICE RECORDS OF FINE TIKE PIECES IN SECONDS AND DECIMALS. (TABLE 45) 

WATCH( C )N9.6984 ENGUSH(Sc« Observatory Tests.TablesE,F.) 

!9i0 

Timed 

s 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 

Nov. 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 

15 

3.6 

S. 


Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 

16 

3.3 

ii 

+ 0.3 


-0.06 


Vr. Nt. 

Vr. Nt. 


17 

2.7 

ii 

+ 0.6 


+ 0.24 


ii ’ •• 

ii ii 


18 

2.3 

H 

+ 0.4 


+ 0.04 

t. 

ii if 

if 51 


19 

2.0 

ii 

+ 0.3 


-0.06 




• 

20 

f .8 

)• 

+ 0.2 

+ 0.36 

-0.16 

±0.11 




z\ 

2.0 

•l 

-0.2 


-0.72 


Vt. Nt, 

Vt. Nt. 


zz 

2.0 

H 

-0.0 


-0.52 


l» M 

ii f< 


23 

1 .6 

M 

+ 0.4 


-0.12 


If If 

ii ii 


24 

0.6 

If 

+ 1.0 


+ 0.48 





25 

0.8 

F. 

+ 1 .4 

+ 0.52 

+ 0.88 

±0.54 




26 

1 .3 

«i 

+ 0.5 


+ 0.16 


Vr. Nt 

Vt. Nt. 


27 

1 .8 

ii 

+ 0.5 


+ 0.16 


ii ii 

•i if 


28 

2.2 

ii 

+ 0.4 


+ 0.06 


ii (i 

ii ft 


29 

2 .5 

ii 

+ 0.3 


-0.04 





30 

2.5 

it 

-0.0 

+ 0.34 

-0.34 

±0.15 




Dec. 

2.5 

ii 

-0.0 


-0.20 


Vt. Nt 

Vt. Nt. 


2 

2.7 

it 

+ 0.2 


-0.00 


n •• 

«f ii 


3 

2 .9 

ii 

+ 0.2 


-0.00 


•i it 

if if 


4 

3.2 

ii 

+ 0.3 


+ 0.10 





5 

3.5 

if 

+ 0.3 

+ 0.20 

+ 0.10 

±0.08 




6 

4.0 

it 

+ 0.5 


+ 0.28 


Vt. Nt. 

Vt. Nt. 


7 

4.3 

II 

+ 0.3 


+ 0.08 


II H 

il il 


8 

4.7 

it 

+ 0.4 


+ 0.18 


if if 

II •• 


9 

4.6 

M 

-0.1 


-0.32 





10 

4.6 

li 

-0.0 

+ 0.22 

-0.22 

±0.22 




II 

4.6 

if 

-0.0 


-0.28 


Vt. Nt. 

Vr. Nt. 


12 

4.7 

II 

+ 0.1 


-0.18 


ii ii 

II M 


13 

4.8 

•i 

+ 0/1 


-0.18 


ii if 

II H 


14 

5 .0 

ii 

+ 0.2 


-0.03 





15 

6 .0 

if 

+ 1 .0 

+ 0.28 

+ 0,72 

±0.29 




Average for ( 

> Periods 

+ 0.32 Average±0.23 

5- Slow, p-Fast, + Gain 

-Loss .Vr.-Vertical, Hor.- Horizontal Jemp.-Temperature, Nt/ Ni^ht.Da-Day, Dn.'Down. 

Notes. Test made in usual manner. 

Compare with 

M and 

N preceding pages. 







56 



























































57 

















































(TABLE47)T1 ME SERVICE RECORDS OF FINE TIME P IE CES G RAPH I CALL Y ILLUSTRATED (TA8LE47]j 

Watch A Page Z 4 

Watch C Page Z5 


or 

c 


•LJ <3 






































(TA8LE49/TIME SERVICE RECORDS OP FINE TIME PIECES GRAPHICALLY ILLUSTRATED (TABLE48) 


c « 

25 

S c 

24 

*o Jl 

23 

22 

X 

21 

5 o 

20 

OfVD 

19 

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18 

17 

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16 

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in 

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14 


13 


12 

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10 

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q 

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o 

8 

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7 

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6 

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5 

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c > 

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3 

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2 

W*“ 

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I 

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2 

3 

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4 

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5 



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6 

f: 

7 

* 

8 


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10 

v • •> 
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10 

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9 

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8 

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7 

V) V 

6 

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C <c 

5 

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4 

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3 

w <1 

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-*-• X 

c 

3 


4 

o ^ 

6 


6 

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7 

o 

T> rt5 

8 

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9 

10 

tn > 

II 

X • 
«s </> 

12 

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OJ 

O w 

13 

14 

r> o 

15 























































































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(TABLE 50flME SERVICE RECORD? OF FINE TIME PIECES GRAPHICALLY ILLUSTRATED (TABLE50; 


zi 

21 Witch A Page 40 

m 

Watch I Page 41 




01 







































(TABLE51)TIME SERVICE RECORDS OF FINE TIME PIECES GRAPHICALLY ILLUSTRATED(TA8LE5I) 







































(TABLE J.TIME SERVICE'RECORDS OFFICE TIKE PIECES IN SECONDS AMD DECIKAL5.(TABLE ) 


WATCH 


)N?. 


191 

Timed 

Daily 

S 

F 

Dai ly 
Rate 

Mean 
Dai ly 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up Vt. 
or Dn. 

Ternp. 
at Nt. 
or Da 








— 


— 








— # 


— 








— . 


— 








— 


— 








— 

— 

- 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— . 








— 


— 








— 

— 

— . 

4- 







— 


— 








— 


— 








— 


— 








— 


— . 








— 

— 

— 

+ 







— 


— 








— 


— 








— # 


— . 








— 


— . 








— 

— 

— 

+ 







— 


— 








— 


— # 








— # 


— # 








— # 


— . 








— m 

— 

— # 

+ 





Average for Periods — 


Average!! 


S-Slow, F* Fast, + Cain 


-Loss.VT.-Verti'cal, Kor.-Horizontal,TemprTemperature,Nt ~Night,Da.-Day, Dn.-Povvn. 


Notes: 


65 


































































(TABLE JJIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE } 


WATCH ( )m 


191 

Timed 

Daily 

S 

F 

Daily 

Rate 

Mean 
Dai ly 
Rate 

Variation 
from ilean 
Daily Rate 

Mean 
Variation 
of R?ie 

Bow 
Vertical 
or Hor. 

Pace 
Up Vt. 
or Pn. 

Temp, 
at Nt 
or Da 








— 


• 








— 


« 








— 


• 








— 


• 








— 

-- 

0 

+ 



—— 




— 


4 







— 


• 








— 


0 








— 


4 








— 

— 

• 

+ 







— 










— 


— 








— 


4 








— 


0 








— 

— 

• 

—_ 







— 


• 








— 


0 








— 


• 








— 


• 








— 

— 

0 

+ 

— J 







— 


• 








- 


• 








— 


0 








— 


0 








— 

— 

• 

+ 







— 


4 








— 


0 








— 


O 








-- 


• 








— 

— 

* 

+ 





Average for Parioc 


s — 


A veratfejl 


5-Slow, F* Fast, T Gain 


-Loss .Vx-Vertical, (lor.- horizontalJeirip.-T ?roperature, NL~ Ni^i-it,Pa.-Day. Dn.-Down. 


Notes: 


GG 
























































































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME PIECES(TABlTT 


ADDITIONAL DATA FOR A 

FULLER RECORD OF PRECEDING PAGE. 

Dates 

m 

Time when not 
Washington Moon 

Standard 
with which 
Compared 

City or Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Sees. 





















• 


























































































































































































1 



Note-This Record system can be used by those carrying watdies.to learn their 


time keeping qualities or by Jewelers for Rating an d Regulating watches, 

clocks and chronometers. 

Special Remarks:- 


(>7 
































































































(TABLE JJIME SERVICE RECORDS OFFINETIME PIECES IN SECONDS AND DECiMALS.fTABLE ) 

WATCH ( )N$. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— 


— 








— . 


— 








— . 


— 








— 

— 

- 

+ 







— 


— t 








— 


— 








— 


— 








— 


— . 








— 

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— 

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— , 


— 








— 


— 








— . 


— . 








— 


— # 








— , 

— 

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— . 


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— . 


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— 


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— 

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- 


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— 


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— 

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+ 




Average for 

Periods 

— 

Average 

»+ 

S-Slow, F*Fast, + Gain 

-Loss.Vr.-Vertical, Hor.-Horizonbl,Temp.-Temperature,Nt.'Nighf,Da.-Day, Dn.-Down. 

Notes: 





G8 























































(TABLE ) 5Y5TEMATIZE0 TIME SERVICE REC0RD5 FOR FIHETIKE PIECES (TABLE ) 

ADD!! 

'I0KAL DATA FOR A FULLER RECOR 

D OF PRECEDING PAGE. 

Dates 

191 

Time when not 
Washington Noon 

Standard 
with which 
Compared 

City or Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Sees 



















































































































































































































Note-This Record system can be used by those carrying watc 

ies,to learn their 

time keeping qualities or by Jewelers for Rating and Regulating watches. 

docks and chronometers. 


Special Remarks:- 

—*- 


CD 



























































(TABLc j.TIME SERVICE RECORDS OF FIRE TIME PIECES !H SECONDS AND DeC!MAL3.(TA3LE ) 


WATCH ( )N9. 


191 

Timed 

Daily 

s 

F 

Daily 

Rate 

Mean 
Dai iy 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up VI. 
or Dn. 

Temp, 
at Ht 
or Da 






? 


— . 


— 








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— 








— , 


— 








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— 


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— 


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— 


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— 

— 

— 






Average for Periods — 


Ave 




S-Seow, F'Fast, + Gain 


-Loss ,Vt-Vertical, tier.- Horizontal Jemp.-Tempcrature, Nt~ Niqht, Pa.- Day, Da.-D own. 


Notes: 


70 
























































































(TABLE 

)TIME SERVICE RECORDS Of fINE TIME PIECES GRAPHICALLY ILLUSTRATED (TABLE ) 

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71 

































































































































































(TABLE j.TiKE SERVICE RECORDS OFFiNETIHE PIECES IN SECONDS AND DEC!MAL5.(TA3LE ) 

WATCH ( ) N®. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— . 


— 








— . 


— 








— . 


— . 








— 

— 

— 

+ 







— 


— 4 








— 


— 








— 


— 








— . 


— 








— 

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— 


— 








— 


— . 








— . 


— 








— 


— 








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— 


— 








— . 


— . 








— 


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— 

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— , 


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- 


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— 


— . 








— 


— 








— 

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± 







— 


— 








— 


— 








— 


— 








— # 


— 








— 

— 

— 

+ 




Average for 

Periods 

— 

Average 

.+ 

S-Slow, F*Fast, + Gain 

-Loss.Vr.-Vertical, Hor.-Horizontal,Temp.-Temperature,Nt.-Ni^ht,DarDay, Dn.-Down. 

Notes: 





72 



























































{TABLE HIKE SERVICE RECORDS OFFJNETIME PIECES IN SECONDS AND DECIKALS.fTABLE ) 

WATCH ( )N9. 

191 

Timed 

S 

Dai \y 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hoc 

or Dn. 

or Da 




— 


— 








— # 


— j 








— . 


— 








— 


— 








— 

— 

— 








— 


— 








— 


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— 


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— 


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— . 








— 


— 








— 


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— . 


— 








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Average for 

Periods 

— 

Average 

+ 

S-Slow, F*Fast, + Gain 

-Loss .Vr.-Verticai, Hon-Horizontal,Temp-Temperature, NtrNi«*ht,Da.-Day, Dn.-Down. 

Notes: 





73 



















































































(TABLE JJIME SERVICE RECORDS 0FF1METIME PIECES IN SECONDS AND DECii1AL$.(TABLE ) 

WATCH ( )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— . 


— 








— # 


— . 








— . 


- 








— 

— 

— 

± 







— 


— 








— 


— 








— 


— 








— 


— 








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+ 







— 


— 








— 


— # 








— t 


— . 








— 


— # 








— , 

— 

— 

4- 







— . 


— . 








— . 


— 








— # 


— . 








— 


— 








— , 

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— 


— . 








— 


— 








— # 


— . 








— # 


— . 








— 

— 

— 

+ 







— 


— 








— 


— # 








— 


— 








— 


— 








— # 

— 

— 





Average for 

Periods 

— 

Average 

.+ 

S-Slow, F*Fast, + Gain 

-Loss .VT.-Vertical, flor.- Horizontal,Temp.-Temperature, Nt." Night, Da.-Day, Dn.-Down. 

Notes: 





74 





























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME PIECESfTABLE ) 

ADDITIONAL DATA FOR A FULLER RECOR 

D OF PRECEDING PAGE. 

Dabs 

191 

lime when not 
Washington Noon 

Standard 
with which 
Compared 

City cr Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Sec& 



















































































































































































































Note-This Record system can be used by those carrying watches.to learn their 

time keeping qualities or by Jewelers for Rating and Regulating watches. 

clocks and chronometers. 

Special Remarks:- 




75 



















































(TABLE JJIME SERVICE RECORDS OFFMTIME PIECES IN SECONDS AND DECIMALS.fTABLE ) 

WATCH f )N9. 








19! 

Timed 

s 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai !y 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Her. 

or Dn. 

or Da 




— 


— 




. .. 




— # ■ 


— 








— . 


— 








— 


— # 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— m 








— 

— 

— 

+ 







— 


— 








— 


— # 








— 


— . 








— 


— 








— 

— 

— . 

4- 







— 


— 








— . 


— . 








— 


— 








— 


— . 








— 

— 

— 

+ 







— 


— 








— . 


— 








— 


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— 


— . 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— # 








— 

— 

— . 

+ 




Average for 

Periods 

— 

Average 

.+ 

S-Slow, F* Fast, + Gain 

-Loss .Vx-Vertical, Her.-Horizontal,Temp.-Temperature, Nt - Night, Da.-Day, Dir-Down. 

Notes: 





76 



























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME PIECE$(TABLE ) 


ADD!! 

'I0MAL DATA FOB A 

FULLER RECORD OF PRECEDING PAGE. 

Dates 

191 

Time when not 
Washington Noon 

Standard 
with which 
Compared 

City or Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Secs. 




















































































































































































































Note-This Record system can be used by those carrying waiches.to learn their 


time kecpme qualities or by Jewelers for Rating and Regulating watches, 

clocks an<j chronometers. _ 

S pecial Remarks:- _ 



























































(TABLE JJIMF SERVICE RECORDS OF FINE TIME PIECESIN SECONDS AND DECIMALS.(TABLE ) 


WATCH ( )N$. 


!9i 

Timed 

Daily 

S 

F 

Daily 

Rate 

Mean 
Dai ly 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Paco 

Up Vt. 
or Dn. 

Temp, 
at Nt. 
or Da 








— # 


— 








— # 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— . 

+ 







— t 


— 








— 


— 








— , 


— . 








— , 


— . 








— . 

— 

— . 

4- 







— . 


— . 








— 


— . . 








— 


— . 








— 


— . 








— 

— 

— 

+ 







— 


— # 








— . 


— . 








— # 


— . 








— # 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— , 








— # 

— 

— 

+ 





Average for Periods — 


Avera^ei 


S-Slow, F*Fast, + Gain 


-Loss.VT.-Vertlcal, Hor.-HorizonUIJemp.-Temperature^t.-Ni^ht^Da.-Day, Dn.-Down. 


Notes: 


78 



























































(TABLE ) Tlf1E SERVICE RECORDS Of FIN E TIME P1ECE5 GRAPHICALLY ILLUSTRATED (TABLE ) 


c W 

£ c 

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23 































22 































21 































20 































19 































18 































17 































16 































15 































14 































13 































12 































II 































10 































S 































0 































7 































6 































5 































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79 





















































































































































































(TABLE J.TIME SERVICE RECORDS OFFINETIKE PIECES IN SECONDS AND DECIMALS.fTABLE ) 

WATCH f )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— 


— 








— 


— 








— 


- 








— 

— 

— 

± 







— 


— 








— 


— 








— 


— 








— 


— . 








— # 

— 

— 

± 







— # 


— 








— 


— 








— 


— 








— # 


— 








— 

— 

— 

4- 







— . 


— 








— . 


— 








— 


— . 








— 


— ' . 








— . 

— 

— 

+ 







— 


— 








- 


— 








— 


— . 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 




Average for 

Periods 

— 

Avera«*« 

>+ 

5-Slow, F*Fast, + Gain 

-Loss.VT.-Vertlcal, Hor.-Horizontal,Temp.-Temperature,Nt.-Ni^ht,Da.-Day, Dn.-Down. 

Notes: 


„ . 



80 
























































(TABLE )JIHE SERVICE RECORDS OF FINE TIME PIECES IK SECONDS AND DECIMALS.(TABLE ) 


WATCH ( )N°. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Kate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 








— 


— t 








— 


— 








— 


— 








— 


- 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








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— 


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— 


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+ 







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— 


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Average for 

Periods 

— 

Average 

+ 

5-Slow, F- Fast, 4* Gain 

- Los s,Vt.-V ertical, Nor.-Horizonta!,Temp.-Temperature,Nt-Night, Da.-Day,Dn.-Down. 

Notes: 





81 








































































(TABLE J.TIKE SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND QECIMALS.fTABLE ) 

WATCH ( )N9. 

191 

Timed 

s 

Dai 1/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— # 


— 








— , 


— 








— . 


— . 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— . 








— 

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+ 







— 


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— 


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— # 


— . 








— t 


— 








— . 

— 

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*4* 







— . 


— 








— . 


— 








— 


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— 


— . 








— . 

— 

— 

+ 







— . 


— . 








— 


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— 


— 








— 


— . 








— 

— 

— 

± 







— 


— 








— 


— 








— . 


— . 








— 


— 








— 

— 

— . 

+ 




Average for 

Periods 

— 

Average 

.+ 

5- Slow, F-fast, + Gain 

-Los 

5 , Vt.-V ertical, Nor.-i1orizonialJemp.-Temperatiire,Nt." Night, Da.-Day, Dn.-Down. 

Notes: 





82 

























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME PIECES (TABLE ) 


ADDITIONAL DATA FOR A FULLER RECORD OF PRECEDING PAGE. 


Dabs 

SSI 

Time when not 
Washington Moon 

Standard 
with which 
Compared 

City cr Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Secs, 









































































































































































































■ 











time keeping qualities or by Jewelers for Rating and Regulating watches. 


clocks and chronometers 


Special Remarks:- 


83 





































































(TABLE )JIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE ) 


WATCH ( )N9. 


191 

Timed 

Daily 

S 

F 

Dai 1/ 
Rate 

Mean 
Dai ly 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up Vt. 
or Dri. 

Temp, 
at Nt. 
or Da 








— 


— 








— # 


— # 








— 


— 








— . 


— 








— 

— 

— 








— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— # 


— . 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— . 








— 

— 

— 

+ 







— 


— 








- 


— 








— 


— 








— 


— . 








— 

— 

— 

+ 







— 


— 








— 


— 








— # 


— 








— 


— . 








— 

— 

— . 

+ 





Average for Periods ~Average— 


5-SLow,F*Fast, + 0ain 


-Loss ,VT.-Uertical, Hor.-Horizontal Jemp.Tgmperaturc,Nt ~N’ight,Da.-Pay t Dn.-Down. 

Notes: 


84 


























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME PIECE$(TABLE ) 


ADDITIONAL DATA FOR A FULLER RECORD OF PRECEDING PAGE. 


Dates 

191 

Time when not 
Washington Noon 

Standard 
with which 
Compared 

City or Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

5ec& 




















































































































































































































Note-This Record system can be used by those carrying watches.to learn their 


;ime keeping qualities or by Jewelers for Rating and Regulating watches. 


clocks and chronometers. 


Special Remarks:- 


85 

























































(TABLE J.TIME SERVICE RECORDS OFFIME TIME PIECES IM SECONDS AMD DECIMAL5.(TABLE ) 


WATCH (' )N2. 


191 

Timed 

Daily 

S 

F 

Daily 

Rate 

Mean 
Dai ly 
Rate 

Variation 
from Hean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 

Up vt. 
or Dn. 

Temp, 
at Nt. 
or Da 








— 


— 








— # 


— 








— # 


— 








— 


— . 








— 

— 

— 

+ 







— . 


— t 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— , 


— 








— 


— # 








— t 


— 








— 


— # 








— 

— 

— 

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— . 


— 








— 


— 








— 


— 








— . 


— ' . 








— . 

— 

— 

+ 







— . 


— . 








— 


— . 








— 


— 








— # 


— . 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— , 








— # 


— # 








— # 

— 

— . 






Average for Periods 


Averatfe^t 


5-Slow, F-Fast. + Gain 


-Loss.VT.-Vertical, Hor.-HorizontalJemp,Temperature,Nt."Ni5htDa.-Day, Dn.-Pown. 


Notes: 


8G 
























































(TABLE )TiME SERVICE RECORDS Of FINE TIME PIECES GRAPHICALLY ILLUSTRATED (TABLE ) 


e o) 

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(TABLE IJIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE ) 

WATCH ( )N9. 

191 

Timed 

s 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai 1 y 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— . 


— • # 








— , 


— 








— 


— 








— 

— 

— 

+ 







— 


— 4 








— 


— 








— 


— 








— 


— # 








— 

— 

— 

+ 







— 


— 








— 


— # 








— # 


— m 








— 


— 








— 

— 

— 

4- 







— . 


— 








— 


— 








— # 


— 








— 


— 








— 

— 

— . 

+ 







— . 


— 








— . 


— 








— 


— . 








— # 


— . 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 




Average for 

Periods 

— 

Average 

,+ 

S-Slow, F'Fast. + Gain 

- Los s,Vt.-V ertical, nor.-Horizontal,Temp.-Temperature,Nt."Ni^ht,Da.-Oay, Dn.-Down. 

Notes: 





88 

























































(Table j.time servjce records of fine time pieces in seconds and decimals.(table j 

WATCH ( )N9. 

191 

Timed 

Daily 

s 

F 

Dai \y 
Rate 

Mean 
Dai ly 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up Mi. 
or Dn. 

Temp, 
at Nt. 
or Da 








— 


— 








— # 


— 








— 


— 








— 


- 








— 

— 

— 

+ 







— 


— 










— 








— 


— 








— # 


— 








— 

— 

— 

+ 







— 


— 








— 


— . 








— 


— # 








— 


— 








— , 

— 

— 

4- 







— . 


— . 








— . 


— 








— 


— . 








— . 


— ' . 








— . 

— 

— . 

+ 







— 


— 








— . 


— . 








— 


— . 








— # 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— . 


— # 








— 


— . 








— 

— 

— . 

+ 




Average for Periods — Avera^et 

5-Slow, F* Fast, + Gain 

- Los s.Vt.-V ertical, Hor.* Horizontal,Temp.-Temperature,Nt"Ni3ht,Da.-Day,Dn.-Down. 

Notes: 





89 































































(TABLE JJIME SERVICE RECORDS OF FINE TIME PIECES !H SECONDS AND OECIMALS.(TABLE ) 


WATCH ( )N9. 


191 

Timed 

Daily 

S 

F 

Daily 

Rate 

Mean 
Dai ly 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up Vt. 
or Dn. 

Temp, 
at Nt. 
or Drt 








— 


— 








— 


— 








— 


— 








— , 


— 








— 

— 

— 

+ 







— 


— t 








— 


— 








— 


— 








— 


— 








— # 

— 

— . 

± 







— # 


— 








— 


— # 








— 


— . 








— 


— 








— . 

— 

— 

+ 







— . 


— 








— 


— 








— # 


— 








— . 


— . 








— . 

— 

— 

+ 







— . 


— . 








- 


— 








— 


— 








— 


— . 








— 

— 

— 

± 







— 


— 








— 


— * 








— 


— 








— 


— # 








-- 

— 

— . 

+ 





Average for Periods — AveratfeJ. 


S-Slow, F*Fast, + Gain 


-Loss.VT.-Vertical, l1or.-HorizonhlJemp.Temperature,Nt.~Nit*ht,Da.-Day, Dn.-Down. 


Notes: 


90 




























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FIXE TIME PiECE$(TA8LE ) 

ADDITIONAL DATA FOR A FULLER RECORD OF PRECEDING PAGE. 

Dates 

ISI 

Time when not 
Washington floors 

Standard 
with which 
Compared 

City cr Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Secs. 



















































































































































































































Note-This Record system can be used by those carrying watches.to learn their 

time keeping qualities or by Jewelers for Rating and Regulating watches. 

clocks and chronometers. 

Special Remarks:- 




91 



























































(TABLE JJIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMAL5.(TABLE ) 

WATCH ( )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— 


— 








— 


— # 








— 


— , 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— , 


— 








— 4 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— , 


— 








— . 


— . 








— 


— 








— . 


~ . 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— . 








— 


— , 








- 

— 

— 

+ 







— 


— 








— 


— # 








— 


— 








— 


— 








— 

— 

— 

+ 




Average for 

Periods 

— 

Average 

.+ 

S*Slow, F* Fast, + Gain 

-Loss .Vx-Vertical, Hor.-Horizontal,Temp.-Temperature,Nt."Night,Da.-Day, Dn.-Down. 

Notes: 





92 























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME PIECE$(TABLE ) 

ADDITIONAL DATA FOR A FULLER RECOR 

D OF PRECEDING PAGE. 

Dales 

191 

Time when not 
Washington Noon 

Standard 
with which 
Compared 

City or Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Secs. 



















































































































































































































Note-This Record system can be used by those carrying watches,to learn their 

time keeping qualities or by Jewelers for Rating and Regulating watches. 

clocks and chronometers. 

Special Remarks:- 
























































(TABLE jJIHF 5F.RVICE RECORDS OF FINE T!HE PIECES IN SECONDS AND DECIMAL5.(TABLE ) 


WATCH ( )N9. 


191 

Timed 

Daily 

S 

F 

Daily 

Rate 

Mean 
Dai ly 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or Hor. 

Face 
Up Mi. 
or Dn. 

Temp, 
at Nt 
or Da 








— 


— 








— . 


— 








— 


— 








— . 


— # 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

± 







— 


— 








— 


— 








— # 


— 








— 


— 








— , 

— 

— . 

4“ 







— 


— , 








— . 


— . • 








— # 


— 








— 


— 








— , 

— 

— 

+ 







— . 


— . 








— 


— 








— 


— , 








— 


— 








— 

— 

— 

jr 







— 


— 








— 


— 








— 


— 








— # 


— , 








— 

— 

— 

4- 





Average for Periods —Avera^ejl 


S-Slow, F'Fast, + Gain 


•Loss .VT.-Verti'cal, Nor.- Horizontal Jemp.-Temperature, ftlt~ Night, Da.-Day, Dn.-Down. 


Notes: 


94 


























































(TABLE )TIME 5ERVICE RECORDS OF FINE TIME PIECES GRAPHICALLY ILLUSTRATED (TABLE ) 


E 10 

12! 





















r 





— 





£ e 
Q'z 
X J® 

or 5 

C 5 

: w 

c£L 

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21 































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IS 































l£ 































17 































16 































15 































14 































13 































12 































1! 































10 































3 































8 































7 































6 































5 































4 































3 































2 































1 































1 































2 































3 































4 































5 































6 































7 































8 































9 































10 































10 































9 































a 































7 






























S 































5 







: 
























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2 


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8 































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2 































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4 































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95 





































































































































































































(TABLE JJIME SERVICE RECORDS OFFINETIHE PIECES IN SECONDS AND DECIMALS.fTABLE ) 

WATCH ( )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— 


— ■ . 








— 


— 








— 


— 








— 

— 

— 








— 


— 








— 


— 








— 


— 








— . 


— 








— 

— 

— 

+ 







— 


— 








— 


— 4 








— . 


— 








— # 


— 








— 

— 

— 

+ 







— # 


— 








— . 


— 








— 


— 








— 


— ' . 








— . 

— 

— 

+ 







— 


— . 








— 


— . 








— 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— # 


— 








— 


— 








— 

— 

— 

+ 




Average for 

Periods 

— 

Average 

»+ 

S-Slow, F-Fast, + Gain 

-Loss.VT.-Vertical, Hor.-Horizontal,Temp.-Temperature,Nt.-Ni^ht,Da.-Day, Dn.-Down. 

Notes: 





96 
























































(TABLE J.TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.(TABLE ) 

WATCH ( )N9. 

191 

Timed 

Daily 

S 

F 

Dai ly 
Rate 

Mean 
Dai ly 
Rate 

Variation 
from Mean 
Daily Rate 

Mean 
Variation 
of Rate 

Bow 
Vertical 
or hor. 

Face 
Up Vt. 
or Dn. 

Temp, 
at Nt. 
or Da 








— 


— 








— # 


— # 





« 



— 


— 








— 


— 








— 

— 

- 

+ 







— 


— t 








— 


— 








— 


— 








— 


— # 








— 

— 

— 

+ 







— 


— 








— 


— # 








— # 


— 



. 





— 


— 








— 

— 

— . 








— 


— . 








— 


— . • 








— # 


— . 








— 


— ' . 








— , 

— 

— 

+ 







— . 


— . 








— 


— 








— 


— . 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— # 


— 








— 

— 

— 

+ 




Average for Periods — Avera^et 

S-Slow, F'Fast. + Gain 

-Loss.VT.-Vertical, Mor.-i1orizontal,Temp.-Temperature,Nt."Ni^ht,Da.-Day, Dn.'Down. 

Notes: 





97 

























































(TABLE j.TIME SERVICE RECORDS OFFINETIHE PIECES IN SECONDS AND DECIMALS.fTABLE ) 

WATCH ( )N9. 








191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bov/ 

Face 

Temp. 

.1- 

Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— £ 


— 








— # 


— . 





i; 



— 


— # 








— . 


- 








— 

— 

— 

+ 







— 


- 








— 


- 








— 


— 








— 


— . 








— 

— 

— 

+ 







— 


— # 








— 


— 4 








— 4 


— . 








— 


— 








— 

— 

— 

+ 







— 


— . 








— . 


— 








— 


— 








— . 


— . 








— , 

— 

— 

-f 







— # 


— . 








- 


— 








— 


— 








— 


— # 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— # 


— . 








— 

— 

— 

+ 




Average for 

Periods 

— 

Average 


S-Slow, F-Fast, + Gain 

-Loss ,VT.-Vertical, Hor.-Horizontal,Temp.-Temperature, Ntr Night, Da.- Day, Dn.-Down. 

Notes: 





08 



























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME P!ECES(TABLE ) 


ADDITIONAL DATA FOR A FULLER RECORD OF PRECEDING PAGE. 


Dates 

!9I 

Time when not 
Washington Noon 

Standard 
with which 
Compared 

City cr Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Secs. 




















































































































































































































Note-This Record s/stem can be used by those carrying watches, to learn their 

time keeping qualities or by Jewelers for Rating an d Regulating watches. 


clocks and chronometers. 
Special Remarks:- 


09 


> > > 























































(TABLE ).TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE ) 

WATCH ( )N9. 

191 

Timed 

S 

Dai!/ 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up vt. 

at Nt 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— 


— 








— 


— 








— 


© 








— 

— 

— 

+ 







— 


— t 








— 


— 








— 


— 








— 


— 








— # 

— 

— 

t 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 








— 


— 








— 


— 








— „ 


~ 








— 


— 








— 

— 

— 

+ 







— 


— . 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— # 








— # 


— 








— 

— 

— . 

+ 




Average for 

Periods 

— 

Avera^ei 

S-Slow, F-Fast, + Oain 

-Loss ,Vr.-Vertical, Nor.-H o rizo n t a 1, Te m p-Te m pe ratu re, N tN i 3 ht, Da.- Day, Dn.-Down. 

Notes: 



( 


C < t 

too 

1 (.’ 





























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS TOR FINE TIME PIECES(TARLE ) 

ADD11 

riONAL DATA FOR A FULLER RECOR 

D OF PRECEDING PAGE. 

Dales 

191 

Time when not 
Washington Noon 

Standard 
with which 
Compared 

City or Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Secs. 



















































































































































































































Note -This Record s/stem can be used by those carrying watc 

les.to learn their 

time keeping qualities or by Jewelers for Rating and Regulating watches. 

clocks and chronometers. 

5oecial Remarks:- 




101 































































(TABLE ).TIME SERVICE RECORDS OF FINE TIME PIECES IN 5EC0NDS AND DECIMAL5.(TABLE ) 

WATCH ( )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

lip vt. 

at Nt 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— . 


— 








— . 


— . 








— 


— 








— 


— 








— 

— 

— 

+ 







— # 


— 4 








— 


— 








— 


— 








— 


— # 








— 

— 

— 

+ 







— # 


— 








— 


— 








— . 


— , 








— 9 


— # 








— 

— 

— 

4- 







— . 


— 








— . 


— . . 








— 


— 








— . 


— ‘ . 








— . 

— 

— 

+ 







— . 


— 








— 


— • . 








— 


— 








— # 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— # 


— 








— 


— # 








— 

— 

— 

+ 




Average for 

Periods 

— 

Average 

>+ 

5-Slow, F*Fast,+ Gain 

-Loss .Vx-Vertical, Hor.- Horizontal,Temp.-Temperature, Nt." Ni^ht,Da.-Da/, Dn.-Down. 

Notes: 



• 


102 

























































(TABLE )T!ME SERVICE RECORDS CF FINE TIME PIECES GRAPHICALLY ILLUSTRATED (TABLE ) 


2 c 
“o i? 

or J 
c £ 

S* 

V) *0 

c CL 

*3 

or • 

£ ce: 

*o 0 
l * c 
$ o 

1 

Q- 

2 •- 

u 

Or <$ 
c> 

or 5 
c S 

«£ 
«i 
.£ M 

wa t 

— C 

*2 .2 
. >*■» 

«W 

x: T 

.ST <a 
<a> > 
X. 

> 

« ~ 

£ 

» o 

± i 

X >» 

« . 

1 w e 

•n " 
c* 
o &: 
u 

O c 
W 43 

fcN- 0} 

°z 

wv , 

25 































24 































23 































22 































21 































2d 































19 































18 































17 































ie 































IS 































14 































13 































12 































1! 































10 































9 































8 































7 

6 





























































5 































4 































3 































2 































! 




















... 











! 































2 































3 































4 































5 































6 































7 































e 































9 































10 































10 



J 



























9 








~ 























8 































7 































6 































5 































4 































3 































2 





























1 






























1 




n 

























x 1 

2 




I 


























V x 
«y 

o ,5 

3 































4 































5 































to IK 

6 































• > 
«$ — 
*n ** 

7 































e 































>r fg " 

C O 

9‘ 































5 « 
w > 

10 

II 





























































A «i 

2 































TJ » 

3 































o w 

4 































S O j 

? 
































105 




























































































































































































(TABLE j.TIME SERVICE RECORDS OF FINE TIME PIECE5 IN SECONDS AND DECIMALS.fTABLE ) 

WATCH ( )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Daily 

from Mean 

Variation 

Vertical 

Up Mi. 

at Nt 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— 9 


— 








— 


— 








— 


— . 








— 

— 

— 

Hr 







— 


- 








— 


— 








— 


— 








— 


— 








— # 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— # 


— 








— 

— 

— . 

4- 







— 


— 








— . 


— 








— 


— . 








— . 


— ' . 








— 

— 

— 

+ 







— 


— 








- 


— . 








— # 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 




Average for 

Periods 

— 

Average 


S-Slow, F'Fast, + Gain 

-Loss.VT.-Vertical, Hor.-Horizontal,Temp.-Temperature,NtrNi^ht,Da.'Day, On.-Down. 

Motes: 





104 

























































(TABLE JJIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND DECIMALS.fTABLE j 

WATCH ( )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— 


— # 








— # 


— 








— 


— # 








— 

— 

— 








— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— # 








— 


— 








— 


— 








— 

— 

— 

4- 







— 


— . 








— . 


— . . 








— 


— . 








— 


— ‘ . 








— 

— 

— . 

+ 







— 


— . 








— . 


— . 








— 


— 








— # 


— , 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— 








— # 


— 








— # 

— 

— 

4- 




Average for 

Periods 

— 

Average 

4- 

5-Slow, F'Fast, + Gain 

-Loss.Vi.-Vertical, Mor.-Horizonbl,Temp.-Temperature,Nt'Ni^ht,Da.-Day, On.-Down. 

Notes: 





105 


























































(TABLE JJIME SERVICE RECORDS OFFINETIHE PIECES IN SECONDS AND DECIMALS.fTABLE j 

WATCH ( )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— 


— 








— # 


— 








— , 


— 








— . 


— . 








— 

— 

- 

Hr 







— 


— 








— 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— # 








— 










— 


— # 








— . 

— 

— . 

-1- 







— 1 


— . 








— 


— 








— # 


— 








— 


— 








— 

— 

— 

+ 







— . 


— 








- 


— 








— 


— 








— 


— 








— 

— 

— 

+ 







— 


— 








— 


— 








— 


— # 








— 


— , 








— 

— 

— 

+ 




Average for 

Periods 

— 

Average 

.+ 

5-Slow, F*Fast, + Gain 

-Loss .W.-Vertical, Hor.- horizontal Jemp.-Temperatu re, Nt.” Ni^ht.Da.-Day, Dn.-Down. 

Notes: 





100 

























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME PIECE$(TABLE j 

ADDITIONAL DATA FOR A FULLER RECORD Or PRECEDING PAGE. 

Dates 

191 

Time when not 
Washington Noon 

Standard 
with which 
Compared 

City or Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Secs, 






• 













































































































































































































Note-This Record system can be used by those carrying watchcs.to learn their 

time keeping qualities or by Jewelers for Rating and Regulating watches. 

clocks and chronometers. 

Special Remarks:- 




307 























































(TABLE ).TIME SERVICE RECORDS OF FINE TIME PIECE5IH SECONDS AND DECIMALS.fTABLE ) 

WATCH ( )N9. 

191 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

Face 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Mor. 

or Dn. 

or Da 




— 


— 








— t 


— 








— 


— 








— 


— 








— 

— 

- 

+ 







— 4 


— 








— 


— 








— 


— 








— 


— . 








— 

— 

— 

+ 







— 


— 








— 


— 








— . 


— . 








— 


— 








— . 

— 

— 

-f 







— 


— 








— 


— 








— ' 


— . 








— 


— 








— , 

— 

— 

+ 







— 


— . 








— 


— 








— , 


— 








— # 


— 








- 

— 

— 

+ 







— 


— 








— 


— 








— 


— % 








— 


— # 








— 

— 

• 





Average for 

Periods 

— 

Average 

»+ 

5-Slow, F*Fast, + Gain 

-Loss .Vx-Vertical, dor.- liorizonb!,Temp.-Temperature,Nt "Ni^ht,Da.-Day, Dn.-Down. 

Notes: 



% 


108 
























































(TABLE ) SYSTEMATIZED TIME SERVICE RECORDS FOR FINE TIME PIECES(TA8I.E ) 

ADDITIONAL DATA FOR A FULLER RECOR 

D OF PRECEDING PAGE. 

Dates 

191 

Time when not 
Washington Moon 

Standard 
with which 
Compared 

City or Place 
Observation 
was made 

General 

Remarks 

Hours 

Mins. 

Secs. 










































































































• 









































































































Note-This Record s/stem can be used by those carrying watches.to learn their 

time keeping qualities or by Jewelers for Rating and Regulating watches. 

docks and chronometers. 

Special Remarks:- 




109 





















































(TABLE J.TIME SERVICE RECORDS OF FINE TIME PIECES IN SECONDS AND OECIMALS.fTABLE ) 

WATCH( ) 

N9. 








131 

Timed 

S 

Daily 

Mean 

Variation 

Mean 

Bow 

lace 

Temp. 


Daily 

F 

Rate 

Dai ly 

from Mean 

Variation 

Vertical 

Up Vt. 

at Nt. 





Rate 

Daily Rate 

of Rate 

or Hor. 

or Dn. 

or Da 




— m 


— 








— 


- 








— 


— 








— 


- 








— 

— 

— . 

+ 







— 4 


— 4 








— 


— 








— 


— 








— 


- 








— 

— 

— 

+ 







— # 


— 








— 


— # 








— . 


— „ 








— 


— # 








— . 

— 

— 

4- 







— 


— , 








— 


— . - 








— # 


— . 








— 


— 








— 

— 

— 

+ 







— . 


— . 








- 


— 








— , 


— 








— 


— . 








— 

— 

— 

+ 







— 


— 








— 


— 








— # 


— 








— 


— 








— 

— 

— 

+ 




Average for 

Periods 

— 

Averaget 

S-Slow, F* Fast, + Gain 

-Loss, Vt. Vertical, Hor.-Horizontal,Temp.Temperature,Nt." Night, Da.-Day,Dn.-Down. 

Notes: 

































































One copy del. to Cat. Div. 


m 17 i9ii 








































